Pub Date : 2025-02-28DOI: 10.1016/j.prevetmed.2025.106494
Marta Hernandez-Jover , Lynne Hayes , Jane Heller , Jennifer Manyweathers , Fernanda C. Dórea , Cecily Moore , Emily Doyle , Nicole Schembri
<div><div>Early detection of disease is crucial for an effective and timely disease control and eradication response and requires sensitive and robust surveillance systems. The use of early warning systems based on the systematic monitoring of health data and the identification of syndromes, known as syndromic surveillance systems, has been used for early identification of human and animal health events. Despite the marked development in animal health syndromic surveillance (AHSyS) systems in the last two decades, challenges for the implementation of functional AHSyS systems continue to exist, with limited research investigating stakeholder perspectives on these systems. The current project aimed to identify key drivers and barriers of livestock industry private sector stakeholder participation in syndromic surveillance in New South Wales (NSW), Australia. To achieve this aim, a qualitative study was conducted using semi-structured interviews with seven international syndromic surveillance experts and 17 private sector stakeholders, including abattoirs, knackeries, animal health consultants/veterinarians, research institutions, livestock industries, pharmaceutical companies, private veterinary laboratories and a national animal health body. The expert consultation identified that despite the significant advancements on AHSyS in the last two decades, implementation of AHSyS systems continue to be limited, with key considerations being the lack of data standardisation, issues with data privacy, data integration and the limited consideration of stakeholder needs for supporting decision-making and benefits from participation. Strong iterative collaboration with all stakeholders with high levels of trust, appropriate resourcing, and balance between regulatory and industry needs are required for supporting system sustainability. Animal health surveillance was important for all stakeholders in the consultation, however understanding of syndromic surveillance systems was limited. A significant amount of health and production data is already being collected by stakeholders; however, the data type and data collection platforms are highly variable, confirming the complexity for standardisation and integration. The major stakeholder concerns were in relation to privacy, protection of information and the potential commercial and/or trade implications of data misuse or misrepresentation, the required additional resourcing for participating and the regulatory nature of such system. Despite these concerns, all stakeholders showed interest in being involved in further discussions on the development of an AHSyS system. A successful AHSyS system should consider representativeness and quality of the data, simplicity in data collection and processing, clear benefits and value of the outputs, and strong collaboration across all relevant stakeholders. Outcomes from this project will inform future activities for the development of AHSyS initiatives in Australia.</div></
{"title":"Understanding drivers and barriers to stakeholder participation in syndromic surveillance for application in Australia","authors":"Marta Hernandez-Jover , Lynne Hayes , Jane Heller , Jennifer Manyweathers , Fernanda C. Dórea , Cecily Moore , Emily Doyle , Nicole Schembri","doi":"10.1016/j.prevetmed.2025.106494","DOIUrl":"10.1016/j.prevetmed.2025.106494","url":null,"abstract":"<div><div>Early detection of disease is crucial for an effective and timely disease control and eradication response and requires sensitive and robust surveillance systems. The use of early warning systems based on the systematic monitoring of health data and the identification of syndromes, known as syndromic surveillance systems, has been used for early identification of human and animal health events. Despite the marked development in animal health syndromic surveillance (AHSyS) systems in the last two decades, challenges for the implementation of functional AHSyS systems continue to exist, with limited research investigating stakeholder perspectives on these systems. The current project aimed to identify key drivers and barriers of livestock industry private sector stakeholder participation in syndromic surveillance in New South Wales (NSW), Australia. To achieve this aim, a qualitative study was conducted using semi-structured interviews with seven international syndromic surveillance experts and 17 private sector stakeholders, including abattoirs, knackeries, animal health consultants/veterinarians, research institutions, livestock industries, pharmaceutical companies, private veterinary laboratories and a national animal health body. The expert consultation identified that despite the significant advancements on AHSyS in the last two decades, implementation of AHSyS systems continue to be limited, with key considerations being the lack of data standardisation, issues with data privacy, data integration and the limited consideration of stakeholder needs for supporting decision-making and benefits from participation. Strong iterative collaboration with all stakeholders with high levels of trust, appropriate resourcing, and balance between regulatory and industry needs are required for supporting system sustainability. Animal health surveillance was important for all stakeholders in the consultation, however understanding of syndromic surveillance systems was limited. A significant amount of health and production data is already being collected by stakeholders; however, the data type and data collection platforms are highly variable, confirming the complexity for standardisation and integration. The major stakeholder concerns were in relation to privacy, protection of information and the potential commercial and/or trade implications of data misuse or misrepresentation, the required additional resourcing for participating and the regulatory nature of such system. Despite these concerns, all stakeholders showed interest in being involved in further discussions on the development of an AHSyS system. A successful AHSyS system should consider representativeness and quality of the data, simplicity in data collection and processing, clear benefits and value of the outputs, and strong collaboration across all relevant stakeholders. Outcomes from this project will inform future activities for the development of AHSyS initiatives in Australia.</div></","PeriodicalId":20413,"journal":{"name":"Preventive veterinary medicine","volume":"239 ","pages":"Article 106494"},"PeriodicalIF":2.2,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143552423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-28DOI: 10.1016/j.prevetmed.2025.106495
Kim Dianne B. Ligue-Sabio , Mark Frederick T. Lacaba , Jasper Elvin C. Mijares , Lyre Anni E. Murao , Pedro A. Alviola IV
African swine fever (ASF) has severely disrupted the Philippine pig industry, necessitating a thorough understanding of its local epidemiology to develop effective mitigation strategies. The outbreak has particularly impacted smallholder farmers, who face substantial economic losses, livelihood threats, and psychological distress due to ASF. This study examined the ASF outbreak in Davao Region, Southern Philippines, by analyzing its spatiotemporal patterns and identifying risk factors. The investigation involved three parts: determining spatiotemporal patterns using spatial autocorrelation and hotspot analysis, conducting Key Informant Interviews (KIIs) with government veterinarians to identify local risk factors, and fitting a conditional logistic regression model to estimate the effects of biosecurity and farming practices on the likelihood of ASF occurrence. A sharp decline in incidence rates and non-recurring hotspots of ASF-affected barangays (villages) were observed, which may have been influenced by community quarantines and 1–7–10 zoning protocols. However, ASF hotspots continuously shifted towards the northeast provinces of the region. Thematic analysis of collected data from KIIs highlighted six general areas of ASF management and control that have posed challenges: farm biosecurity, traders' roles, farmers' capabilities, slaughterhouse practices, veterinary services, and response gaps. Regression analysis revealed that biosecurity measures for trade vehicles and cleaning practices were associated with a decreased likelihood of ASF risk, while swill feeding, inadequate waste management, and improper disposal of diseased pigs were associated with an increased likelihood of ASF risk. These findings provide critical insights for managing ASF spread while supporting smallholder farmers, strengthening the livestock industry’s resilience against similar diseases.
{"title":"Spatiotemporal patterns and risk factors for African swine fever-affected smallholder pig farms in Davao Region, Southern Philippines","authors":"Kim Dianne B. Ligue-Sabio , Mark Frederick T. Lacaba , Jasper Elvin C. Mijares , Lyre Anni E. Murao , Pedro A. Alviola IV","doi":"10.1016/j.prevetmed.2025.106495","DOIUrl":"10.1016/j.prevetmed.2025.106495","url":null,"abstract":"<div><div>African swine fever (ASF) has severely disrupted the Philippine pig industry, necessitating a thorough understanding of its local epidemiology to develop effective mitigation strategies. The outbreak has particularly impacted smallholder farmers, who face substantial economic losses, livelihood threats, and psychological distress due to ASF. This study examined the ASF outbreak in Davao Region, Southern Philippines, by analyzing its spatiotemporal patterns and identifying risk factors. The investigation involved three parts: determining spatiotemporal patterns using spatial autocorrelation and hotspot analysis, conducting Key Informant Interviews (KIIs) with government veterinarians to identify local risk factors, and fitting a conditional logistic regression model to estimate the effects of biosecurity and farming practices on the likelihood of ASF occurrence. A sharp decline in incidence rates and non-recurring hotspots of ASF-affected barangays (villages) were observed, which may have been influenced by community quarantines and 1–7–10 zoning protocols. However, ASF hotspots continuously shifted towards the northeast provinces of the region. Thematic analysis of collected data from KIIs highlighted six general areas of ASF management and control that have posed challenges: farm biosecurity, traders' roles, farmers' capabilities, slaughterhouse practices, veterinary services, and response gaps. Regression analysis revealed that biosecurity measures for trade vehicles and cleaning practices were associated with a decreased likelihood of ASF risk, while swill feeding, inadequate waste management, and improper disposal of diseased pigs were associated with an increased likelihood of ASF risk. These findings provide critical insights for managing ASF spread while supporting smallholder farmers, strengthening the livestock industry’s resilience against similar diseases.</div></div>","PeriodicalId":20413,"journal":{"name":"Preventive veterinary medicine","volume":"239 ","pages":"Article 106495"},"PeriodicalIF":2.2,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143552424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-28DOI: 10.1016/j.prevetmed.2025.106493
K.M.J.A. van den Brink , H. Brouwer-Middelesch , G. van Schaik , T.J.G.M. Lam , J.A. Stegeman , R. van den Brom , M.A.H. Spierenburg , I.M.G.A. Santman-Berends
In September 2023, bluetongue virus serotype 3 (BTV-3) was identified among sheep and cattle in the Netherlands. Severe clinical signs and increased mortality were reported in sheep and cattle. The aim of this study was to quantify the impact of BTV-3 on mortality, abortions and premature births in cattle in the Netherlands in 2023. Data were available from 1 January 2020–31 December 2023 and were aggregated at herd-month level. Cattle herds were assigned a BTV-3 status for each herd-month: 1) herds that notified clinical signs of BTV-3, 2) herds that did not notify clinical signs but were located in BTV-3 infected areas or 3) herds that were located in BTV-3 free areas (all areas without BTV-3 notifications). Multivariable population-averaged generalized estimating equations models were used to quantify the association between the BTV-3 epidemic and cattle mortality, abortions and premature births. The results showed that from September 2023 until the end of 2023, perinatal calf mortality increased 1.11 (95 % CI:1.06–1.16) and 1.07 (95 % CI: 1.05–1.09) times, in dairy herds with a notified BTV-3 outbreak and in other dairy herds located in outbreak areas, respectively. Premature birth may be one of the explanations of increased calf mortality, as suggested by an odds ratio of 1.39 (95 % CI: 1.26–1.54) for premature births in dairy herds with a notified BTV-3 outbreak compared to dairy herds in BTV-3 free areas. The odds of abortions in infected dairy herds was 1.1 (95 %CI: 1.02–1.20) times higher compared to non-infected herds. Mortality in cattle aged 1–2 years and older than 2 years increased 2.25 (95 %CI: 1.97–2.58) and 1.71 (95 % CI: 1.62–1.81) times respectively, in infected dairy herds. In dairy herds without notification located in BTV-3 infected areas, mortality increased by 1.17 (95 %CI: 1.07–1.27) and 1.22 (95 % CI: 1.19–1.25) times respectively, compared to herds in BTV-3 free areas. In addition, suckler cow herds, beef cattle herds and small scale non-dairy cattle herds with a notified BTV-3 outbreak showed a significantly increased mortality during the BTV-3 epidemic compared to herds in BTV-3 free areas. In conclusion, BTV-3 infections markedly increased abortions, mortality and premature births in cattle herds.
{"title":"The impact of bluetongue serotype 3 on cattle mortality, abortions and premature births in the Netherlands in the first year of the epidemic","authors":"K.M.J.A. van den Brink , H. Brouwer-Middelesch , G. van Schaik , T.J.G.M. Lam , J.A. Stegeman , R. van den Brom , M.A.H. Spierenburg , I.M.G.A. Santman-Berends","doi":"10.1016/j.prevetmed.2025.106493","DOIUrl":"10.1016/j.prevetmed.2025.106493","url":null,"abstract":"<div><div>In September 2023, bluetongue virus serotype 3 (BTV-3) was identified among sheep and cattle in the Netherlands. Severe clinical signs and increased mortality were reported in sheep and cattle. The aim of this study was to quantify the impact of BTV-3 on mortality, abortions and premature births in cattle in the Netherlands in 2023. Data were available from 1 January 2020–31 December 2023 and were aggregated at herd-month level. Cattle herds were assigned a BTV-3 status for each herd-month: 1) herds that notified clinical signs of BTV-3, 2) herds that did not notify clinical signs but were located in BTV-3 infected areas or 3) herds that were located in BTV-3 free areas (all areas without BTV-3 notifications). Multivariable population-averaged generalized estimating equations models were used to quantify the association between the BTV-3 epidemic and cattle mortality, abortions and premature births. The results showed that from September 2023 until the end of 2023, perinatal calf mortality increased 1.11 (95 % CI:1.06–1.16) and 1.07 (95 % CI: 1.05–1.09) times, in dairy herds with a notified BTV-3 outbreak and in other dairy herds located in outbreak areas, respectively. Premature birth may be one of the explanations of increased calf mortality, as suggested by an odds ratio of 1.39 (95 % CI: 1.26–1.54) for premature births in dairy herds with a notified BTV-3 outbreak compared to dairy herds in BTV-3 free areas. The odds of abortions in infected dairy herds was 1.1 (95 %CI: 1.02–1.20) times higher compared to non-infected herds. Mortality in cattle aged 1–2 years and older than 2 years increased 2.25 (95 %CI: 1.97–2.58) and 1.71 (95 % CI: 1.62–1.81) times respectively, in infected dairy herds. In dairy herds without notification located in BTV-3 infected areas, mortality increased by 1.17 (95 %CI: 1.07–1.27) and 1.22 (95 % CI: 1.19–1.25) times respectively, compared to herds in BTV-3 free areas. In addition, suckler cow herds, beef cattle herds and small scale non-dairy cattle herds with a notified BTV-3 outbreak showed a significantly increased mortality during the BTV-3 epidemic compared to herds in BTV-3 free areas. In conclusion, BTV-3 infections markedly increased abortions, mortality and premature births in cattle herds.</div></div>","PeriodicalId":20413,"journal":{"name":"Preventive veterinary medicine","volume":"239 ","pages":"Article 106493"},"PeriodicalIF":2.2,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143552426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pork is one of the most consumed meats in the world, including in Burundi. This study aimed to describe the pork value chain (PVC), stakeholders’ practices, and the implications for the transmission of T. solium and T. gondii in Burundi. A mixed methods approach was used to collect data from stakeholders along the PVC in Bujumbura city, Kayanza, and Ngozi provinces, including literature reviews and food safety regulations. A total of 386 participants took part in the interviews and 63 participated in FGDs and informal conversations. The five types of PVCs were identified. Extensive pig production farms were predominant (81 %) with one to three pigs per pig keeper. Potential risks for porcine cysticercosis and toxoplasmosis in the primary sector included unfit pen conditions, misuse of latrines, open defecation, pigs fed mainly with grasses and leftovers, unsafe water, and human stool for crop fertilization. Home and clandestine slaughters were common for pigs infected with T. solium cysts. Most slaughter slabs did not meet slaughter and carcass transport standards or meat inspection regulations. There was a lack of refrigeration equipment for pork, as well as inadequate pork handling and preparation at retail outlets and homes. Following the HACCP principles, effective ways to mitigate hazards before reaching consumers were identified. This study revealed inadequate practices and their implications for the transmission of T. solium and T. gondii infections in Burundi. Urgent actions targeting the strengthening capacities and multi-sectoral collaboration, raising awareness, and changing practices are essential to control these parasites.
{"title":"Stakeholders’ practices in the pork value chain: Potential risks for Taenia solium and Toxoplasma gondii transmission in Burundi","authors":"Salvator Minani , Anastasie Gasogo , Jean-Bosco Ntirandekura , Chiara Trevisan , Sarah Gabriël","doi":"10.1016/j.prevetmed.2025.106492","DOIUrl":"10.1016/j.prevetmed.2025.106492","url":null,"abstract":"<div><div>Pork is one of the most consumed meats in the world, including in Burundi. This study aimed to describe the pork value chain (PVC), stakeholders’ practices, and the implications for the transmission of <em>T. solium</em> and <em>T. gondii</em> in Burundi. A mixed methods approach was used to collect data from stakeholders along the PVC in Bujumbura city, Kayanza, and Ngozi provinces, including literature reviews and food safety regulations. A total of 386 participants took part in the interviews and 63 participated in FGDs and informal conversations. The five types of PVCs were identified. Extensive pig production farms were predominant (81 %) with one to three pigs per pig keeper. Potential risks for porcine cysticercosis and toxoplasmosis in the primary sector included unfit pen conditions, misuse of latrines, open defecation, pigs fed mainly with grasses and leftovers, unsafe water, and human stool for crop fertilization. Home and clandestine slaughters were common for pigs infected with <em>T. solium</em> cysts. Most slaughter slabs did not meet slaughter and carcass transport standards or meat inspection regulations. There was a lack of refrigeration equipment for pork, as well as inadequate pork handling and preparation at retail outlets and homes. Following the HACCP principles, effective ways to mitigate hazards before reaching consumers were identified. This study revealed inadequate practices and their implications for the transmission of <em>T. solium</em> and <em>T. gondii</em> infections in Burundi. Urgent actions targeting the strengthening capacities and multi-sectoral collaboration, raising awareness, and changing practices are essential to control these parasites.</div></div>","PeriodicalId":20413,"journal":{"name":"Preventive veterinary medicine","volume":"239 ","pages":"Article 106492"},"PeriodicalIF":2.2,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143552425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-24DOI: 10.1016/j.prevetmed.2025.106488
Beatriz Cardoso , Sabrina Castro-Scholten , Patrizia Cavadini , Moira Bazzucchi , José Alberto Viñuelas , Mónica Martinez-Haro , João Queirós , Paulo Célio Alves , Pelayo Acevedo , Ignacio García-Bocanegra , Nuno Santos
Validated diagnostic tools are essential when conducting serological surveys. However, reliable tests are scarce and hard to attain for emerging pathogens due to the lack of reference tests or samples. Recently, a recombinant myxoma virus (MYXV), named ha-MYXV, raised alarm in the Iberian Peninsula for its impact on Iberian hare (Lepus granatensis) populations and its detection in wild (Oryctolagus cuniculus) and domestic rabbits. Here, we follow a Bayesian approach to evaluate two serological tools, an indirect ELISA (iELISA) and a competitive ELISA (cELISA), used to monitor this emerging pathogen in Iberian hare populations. We modelled serological data from 227 hares conveniently selected retrospectively for their apparent healthy status. First, we applied finite mixture models to adjust the cut-off thresholds of both tests, which improved the agreement between both tests (initial kappa = 0.42, after threshold adjustment = 0.78). Then, we employed Bayesian latent class models (BLCM) to estimate the assays’ specificity (Sp) and sensitivity (Se). The BLCM estimated median Sp of 94.0 % (95 % posterior probability interval (PPI): 85.9–99.4) and 96.1 % (PPI: 87.2–100.0), and Se of 77.7 % (PPI: 61.5–89.5) and 91.7 % (PPI: 78.1–99.9), for the iELISA and the cELISA, respectively. The true seroprevalence estimations show higher values in south-central Spain (ranging from 13.1 % to 70.4 %) and lower in the north (Navarra: 5.5 %). A Bayesian approach allowed to evaluate diagnostic tools for ha-MYXV, an emerging wildlife pathogen, in the absence of reference tests or samples. Future epidemiological studies of myxomatosis in Iberian hares should calculate true seroprevalence based on our estimations.
{"title":"Estimating the diagnostic performance of serological assays for emerging pathogens using a Bayesian approach: Myxoma virus in the Iberian hare (Lepus granatensis)","authors":"Beatriz Cardoso , Sabrina Castro-Scholten , Patrizia Cavadini , Moira Bazzucchi , José Alberto Viñuelas , Mónica Martinez-Haro , João Queirós , Paulo Célio Alves , Pelayo Acevedo , Ignacio García-Bocanegra , Nuno Santos","doi":"10.1016/j.prevetmed.2025.106488","DOIUrl":"10.1016/j.prevetmed.2025.106488","url":null,"abstract":"<div><div>Validated diagnostic tools are essential when conducting serological surveys. However, reliable tests are scarce and hard to attain for emerging pathogens due to the lack of reference tests or samples. Recently, a recombinant myxoma virus (MYXV), named ha-MYXV, raised alarm in the Iberian Peninsula for its impact on Iberian hare (<em>Lepus granatensis</em>) populations and its detection in wild (<em>Oryctolagus cuniculus</em>) and domestic rabbits. Here, we follow a Bayesian approach to evaluate two serological tools, an indirect ELISA (iELISA) and a competitive ELISA (cELISA), used to monitor this emerging pathogen in Iberian hare populations. We modelled serological data from 227 hares conveniently selected retrospectively for their apparent healthy status. First, we applied finite mixture models to adjust the cut-off thresholds of both tests, which improved the agreement between both tests (initial kappa = 0.42, after threshold adjustment = 0.78). Then, we employed Bayesian latent class models (BLCM) to estimate the assays’ specificity (Sp) and sensitivity (Se). The BLCM estimated median Sp of 94.0 % (95 % posterior probability interval (PPI): 85.9–99.4) and 96.1 % (PPI: 87.2–100.0), and Se of 77.7 % (PPI: 61.5–89.5) and 91.7 % (PPI: 78.1–99.9), for the iELISA and the cELISA, respectively. The true seroprevalence estimations show higher values in south-central Spain (ranging from 13.1 % to 70.4 %) and lower in the north (Navarra: 5.5 %). A Bayesian approach allowed to evaluate diagnostic tools for ha-MYXV, an emerging wildlife pathogen, in the absence of reference tests or samples. Future epidemiological studies of myxomatosis in Iberian hares should calculate true seroprevalence based on our estimations.</div></div>","PeriodicalId":20413,"journal":{"name":"Preventive veterinary medicine","volume":"239 ","pages":"Article 106488"},"PeriodicalIF":2.2,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143512598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The impact of diseases on tapir mortality and potential implications for preventive medicine and conservation remain unclear. A systematic literature review was conducted using seven databases and grey literature to address these gaps. The PRISMA statement was adopted to report results, and boosted regression tree models were employed for data analysis. After screening 5323 records and removing duplicates, the title and abstract of 2484 records were assessed. Out of 502 eligible studies, only 206 met all inclusion criteria. These were published between 1924 and 2023 in ten languages, comprising mainly case reports (45.1 %) and cross-sectional studies (41.3 %). Infectious diseases were found in 72.9 % of the reports, and 27.2 % presented clinical signs. The most affected systems were gastroenteric (22.7 %), integumentary (22.1 %), and respiratory (17.5 %). Respiratory diseases were associated with increased mortality. Factors affecting tapir mortality included species (relative influence 41.5 %), followed by geographic location (23.5 %) and captivity (16.8 %). Clinical signs were the least important variable (4 %). While infectious diseases were associated with higher mortality risk, tapirs were more likely to become ill from non-infectious than infectious diseases. Captive individuals were also more likely to present with illness than their wild counterparts. When considering external causes, vehicle collisions represented the most significant cause of death (52.2 %), followed by hunting (38.2 %). Diseases (8.7 %) were the third most important, with bacterial infections the leading cause of death. This review represents the most comprehensive overview on tapir health to date and provides novel ways to collate epidemiological data from disparate study designs.
{"title":"Disease dynamics and mortality risk in tapirs (Perissodactyla: Tapiridae) through a systematic literature review: Implications for preventive medicine and conservation.","authors":"Renata Carolina Fernandes-Santos , Kristin Warren , Rebecca Vaughan-Higgins , Tatiane Micheletti , Mieghan Bruce","doi":"10.1016/j.prevetmed.2025.106470","DOIUrl":"10.1016/j.prevetmed.2025.106470","url":null,"abstract":"<div><div>The impact of diseases on tapir mortality and potential implications for preventive medicine and conservation remain unclear. A systematic literature review was conducted using seven databases and grey literature to address these gaps. The PRISMA statement was adopted to report results, and boosted regression tree models were employed for data analysis. After screening 5323 records and removing duplicates, the title and abstract of 2484 records were assessed. Out of 502 eligible studies, only 206 met all inclusion criteria. These were published between 1924 and 2023 in ten languages, comprising mainly case reports (45.1 %) and cross-sectional studies (41.3 %). Infectious diseases were found in 72.9 % of the reports, and 27.2 % presented clinical signs. The most affected systems were gastroenteric (22.7 %), integumentary (22.1 %), and respiratory (17.5 %). Respiratory diseases were associated with increased mortality. Factors affecting tapir mortality included species (relative influence 41.5 %), followed by geographic location (23.5 %) and captivity (16.8 %). Clinical signs were the least important variable (4 %). While infectious diseases were associated with higher mortality risk, tapirs were more likely to become ill from non-infectious than infectious diseases. Captive individuals were also more likely to present with illness than their wild counterparts. When considering external causes, vehicle collisions represented the most significant cause of death (52.2 %), followed by hunting (38.2 %). Diseases (8.7 %) were the third most important, with bacterial infections the leading cause of death. This review represents the most comprehensive overview on tapir health to date and provides novel ways to collate epidemiological data from disparate study designs.</div></div>","PeriodicalId":20413,"journal":{"name":"Preventive veterinary medicine","volume":"239 ","pages":"Article 106470"},"PeriodicalIF":2.2,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143487626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-19DOI: 10.1016/j.prevetmed.2025.106476
Md. Sodrul Islam , Apurbo Kumar Mondal , Md. Rabiul Auwul , Md. Shahidul Islam , Md. Abdullah Al Mahmud , Md. Irtija Ahsan
Backgrounds
Vaccines are crucial for preventing and controlling diseases in ruminant livestock. However, the effectiveness of vaccination campaigns depends on livestock producers' knowledge, perspectives, and behaviours towards their implementation. Unfortunately, as far as the author knowledge, no studies have been conducted in Bangladesh to assess the knowledge, attitudes, and practices (KAP) status of large ruminant farmers (LRF) regarding vaccine use against infectious diseases. Therefore, the aim of the present study was to address this research gap in Bangladesh for the first time.
Methods
A cross-sectional study was conducted among 244 LRF in selected regions of Rangpur division, Bangladesh. The participants were selected at random, and data was collected via face-to-face interviews with a structured questionnaire. KAP levels were categorized as "good" or "poor" and "positive" or "negative" using a scoring method with a 60 % cut-off. The analysis comprised the utilization of descriptive statistic as well as logistic regression models.
Results
The findings demonstrated that most respondents were male (85.2 %), aged 31–40 (32.8 %), with higher education (27.9 %), and vaccination training (28.7 %). While 73.8 % of farmers knew about vaccines, only 39.8 % understood their role in preventing illness from infected animals, and 40.2 % in reducing antibiotic use. Notably, 61.5 % were aware of negative drawbacks, and 59.4 % reported vaccinating their ruminant herds. Most farmers (62.7 %) don't check the expiration dates on vaccine or properly dispose of vials (81.6 %), which poses environmental and public health hazards. Overall, 46.3 %, 55.3 %, and 27.8 % of the farmers had good knowledge, a positive attitude, and good practices, respectively. Multivariable analyses revealed that male farmers aged 41–50 with a higher secondary education, over 15 years of dairy farming experience, and vaccination training were more likely to have good knowledge of vaccine usage. Accordingly, positive attitudes were associated with male farmers with graduate degrees who had vaccination training. Similarly, trained farmers were more likely to have good vaccination practices.
Conclusions
The study reveals farmers' KAP score gaps. It is critical to develop targeted educational and training initiatives to successfully address knowledge and practice gaps regarding vaccine usage and prevent potential large ruminant diseases.
{"title":"Assessment of knowledge, attitudes, and practices on vaccine usage among large ruminant farmers in the rangpur division of Bangladesh","authors":"Md. Sodrul Islam , Apurbo Kumar Mondal , Md. Rabiul Auwul , Md. Shahidul Islam , Md. Abdullah Al Mahmud , Md. Irtija Ahsan","doi":"10.1016/j.prevetmed.2025.106476","DOIUrl":"10.1016/j.prevetmed.2025.106476","url":null,"abstract":"<div><h3>Backgrounds</h3><div>Vaccines are crucial for preventing and controlling diseases in ruminant livestock. However, the effectiveness of vaccination campaigns depends on livestock producers' knowledge, perspectives, and behaviours towards their implementation. Unfortunately, as far as the author knowledge, no studies have been conducted in Bangladesh to assess the knowledge, attitudes, and practices (KAP) status of large ruminant farmers (LRF) regarding vaccine use against infectious diseases. Therefore, the aim of the present study was to address this research gap in Bangladesh for the first time.</div></div><div><h3>Methods</h3><div>A cross-sectional study was conducted among 244 LRF in selected regions of Rangpur division, Bangladesh. The participants were selected at random, and data was collected via face-to-face interviews with a structured questionnaire. KAP levels were categorized as \"good\" or \"poor\" and \"positive\" or \"negative\" using a scoring method with a 60 % cut-off. The analysis comprised the utilization of descriptive statistic as well as logistic regression models.</div></div><div><h3>Results</h3><div>The findings demonstrated that most respondents were male (85.2 %), aged 31–40 (32.8 %), with higher education (27.9 %), and vaccination training (28.7 %). While 73.8 % of farmers knew about vaccines, only 39.8 % understood their role in preventing illness from infected animals, and 40.2 % in reducing antibiotic use. Notably, 61.5 % were aware of negative drawbacks, and 59.4 % reported vaccinating their ruminant herds. Most farmers (62.7 %) don't check the expiration dates on vaccine or properly dispose of vials (81.6 %), which poses environmental and public health hazards. Overall, 46.3 %, 55.3 %, and 27.8 % of the farmers had good knowledge, a positive attitude, and good practices, respectively. Multivariable analyses revealed that male farmers aged 41–50 with a higher secondary education, over 15 years of dairy farming experience, and vaccination training were more likely to have good knowledge of vaccine usage. Accordingly, positive attitudes were associated with male farmers with graduate degrees who had vaccination training. Similarly, trained farmers were more likely to have good vaccination practices.</div></div><div><h3>Conclusions</h3><div>The study reveals farmers' KAP score gaps. It is critical to develop targeted educational and training initiatives to successfully address knowledge and practice gaps regarding vaccine usage and prevent potential large ruminant diseases.</div></div>","PeriodicalId":20413,"journal":{"name":"Preventive veterinary medicine","volume":"238 ","pages":"Article 106476"},"PeriodicalIF":2.2,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143453698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-19DOI: 10.1016/j.prevetmed.2025.106468
Kibambe D. Kiayima , Eric Etter , Petronella Chaminuka , Alexis Delabouglise , Geoffrey T. Fosgate
Foot-and-mouth disease (FMD) is a highly contagious disease affecting domestic livestock and its control in South Africa depends on methods including event-based surveillance and the reporting of disease by farmers. This study assessed FMD knowledge level among small-scale, communal livestock farmers in South Africa's FMD zone with vaccination. A cross-sectional study was conducted with 629 farmers from 44 dip-tanks (animal assembly points). A FMD knowledge score was derived from 25 yes/no questions with scores above the median classified as high FMD knowledge. Mixed-effects logistic regression was used to evaluate predictors of high FMD knowledge with associations reported as odds ratios (OR) and their corresponding 95 % confidence intervals (CI). Eighty percent of the participants were male and 65 % aged 60 or older. The most common livestock raised was cattle (98.1 %). Sixty-six percent (415/629) of the interviewed farmers reported that they were aware of the existence of FMD. Formal education (OR 2.0, 95 % CI, 1.4–2.9, P < 0.001), poultry ownership (OR 1.7, 95 % CI 1.1–2.5, P = 0.006), livestock farming as the main occupation (OR 1.6, 95 % CI 1.1–2.3, P = 0.026) and the total livestock units of their farm (OR 1.5, 95 % CI 1.1–1.9, P = 0.002) were significant predictors of FMD recognition. Most respondents (54 %) that claimed to be aware of the existence of FMD did not know that African buffalos were a source of FMD virus. Also, less than half of the respondents cited lameness (38 %) and excessive salivation (37 %) as the main FMD clinical signs. Only a small proportion (2.4 %) of these respondents were aware that movement of infected animals can cause FMD virus to spread to new areas. FMD knowledge scores were calculated for the 415 respondents claiming to be aware of the existence FMD with 174 (42 %) having a total knowledge score greater than the median (hereafter referred to as “high FMD knowledge” compared to the rest of the farmers). Farmers from Vhembe District in Limpopo had an odds of high FMD knowledge four times higher than those in Ehlanzeni District in Mpumalanga (OR 4.0, 95 % CI 1.7–9.4, P = 0.002). Farmers that owned more than 15 cattle (OR 1.7, 95 % CI 1.0–2.8, P = 0.035) and farmers that supervised their own cattle during grazing (OR 1.6, 95 % CI 1.0–2.5, P = 0.043) also had a significantly higher odds of high FMD knowledge. Communal farmers in South Africa have gaps in their FMD knowledge and specifically were not aware that movement of infected animals and their products pose a threat for the spread of FMD. Comprehensive information, education and training for communal livestock farmers are essential for improving event-based surveillance and FMD prevention and control in the region.
{"title":"Assessment of communal farmers’ knowledge of foot-and-mouth disease (FMD) within the FMD protection zone with vaccination of Limpopo and Mpumalanga Provinces, South Africa","authors":"Kibambe D. Kiayima , Eric Etter , Petronella Chaminuka , Alexis Delabouglise , Geoffrey T. Fosgate","doi":"10.1016/j.prevetmed.2025.106468","DOIUrl":"10.1016/j.prevetmed.2025.106468","url":null,"abstract":"<div><div>Foot-and-mouth disease (FMD) is a highly contagious disease affecting domestic livestock and its control in South Africa depends on methods including event-based surveillance and the reporting of disease by farmers. This study assessed FMD knowledge level among small-scale, communal livestock farmers in South Africa's FMD zone with vaccination. A cross-sectional study was conducted with 629 farmers from 44 dip-tanks (animal assembly points). A FMD knowledge score was derived from 25 yes/no questions with scores above the median classified as high FMD knowledge. Mixed-effects logistic regression was used to evaluate predictors of high FMD knowledge with associations reported as odds ratios (OR) and their corresponding 95 % confidence intervals (CI). Eighty percent of the participants were male and 65 % aged 60 or older. The most common livestock raised was cattle (98.1 %). Sixty-six percent (415/629) of the interviewed farmers reported that they were aware of the existence of FMD. Formal education (OR 2.0, 95 % CI, 1.4–2.9, P < 0.001), poultry ownership (OR 1.7, 95 % CI 1.1–2.5, P = 0.006), livestock farming as the main occupation (OR 1.6, 95 % CI 1.1–2.3, P = 0.026) and the total livestock units of their farm (OR 1.5, 95 % CI 1.1–1.9, P = 0.002) were significant predictors of FMD recognition. Most respondents (54 %) that claimed to be aware of the existence of FMD did not know that African buffalos were a source of FMD virus. Also, less than half of the respondents cited lameness (38 %) and excessive salivation (37 %) as the main FMD clinical signs. Only a small proportion (2.4 %) of these respondents were aware that movement of infected animals can cause FMD virus to spread to new areas. FMD knowledge scores were calculated for the 415 respondents claiming to be aware of the existence FMD with 174 (42 %) having a total knowledge score greater than the median (hereafter referred to as “high FMD knowledge” compared to the rest of the farmers). Farmers from Vhembe District in Limpopo had an odds of high FMD knowledge four times higher than those in Ehlanzeni District in Mpumalanga (OR 4.0, 95 % CI 1.7–9.4, P = 0.002). Farmers that owned more than 15 cattle (OR 1.7, 95 % CI 1.0–2.8, P = 0.035) and farmers that supervised their own cattle during grazing (OR 1.6, 95 % CI 1.0–2.5, P = 0.043) also had a significantly higher odds of high FMD knowledge. Communal farmers in South Africa have gaps in their FMD knowledge and specifically were not aware that movement of infected animals and their products pose a threat for the spread of FMD. Comprehensive information, education and training for communal livestock farmers are essential for improving event-based surveillance and FMD prevention and control in the region.</div></div>","PeriodicalId":20413,"journal":{"name":"Preventive veterinary medicine","volume":"238 ","pages":"Article 106468"},"PeriodicalIF":2.2,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-19DOI: 10.1016/j.prevetmed.2025.106474
Dorien H. Braam , Salome A. Bukachi , Diego Leiva , Alex Tasker , Lisa Boden , Kevin Bardosh
A global discourse continues to emphasize the importance of integrating the social sciences into health governance and systems research, including in the global animal health sector. By comparison to human health, however, it is unclear how far this discourse has changed institutional practices in animal health and what opportunities exist to strengthen this integration. We conducted a qualitative study to address these knowledge gaps, based on 29 semi-structured key informant interviews (KII) with experts involved in the global governance of animal health and biosecurity across five regions between November 2022 and June 2023. Inductive thematic analysis was used to analyse results, which were triangulated with findings from primary and secondary data sources. We divide our analysis into three sections: 1) governance landscape; 3) prioritization; and 3) the role of social science. First, we found that KII consider the global animal health governance landscape shaped by five main actor networks who operate under different institutional norms and mandates: international organizations, bilateral donors, the private sector, national governments, and regional organizations. Informants believed that bilateral donors have disproportionate levels of control and influence; national governments struggle with realistic fiscal planning; engaging the private sector remains challenging; international organizations exhibit tensions in their conflicting mandates; and regional organizations need to be more involved. Second, we found that the key priorities of the actor networks were influenced by core uncertainties and tensions. This included different narratives about risk and methods of risk assessment; conflicting values between health and economic development; and capacity scale problems between global and local networks. The field is perceived to be dominated by the global health security agenda and international trade, and disproportionately focused on pandemic threats. Third, we found that barriers to the integration of social science included disciplinary boundaries, given the dominance of the veterinary sciences; the preponderance of instrumentalized goals; and structural conditions that limited opportunities for knowledge translation. Overall, we found that while the social sciences are increasingly part of a global discourse improving global animal health governance and systems, their current application appears to be of limited range and effectiveness. Coordinated investment in truly interdisciplinary networks, with sufficient disciplinary independence, may help address these problems.
{"title":"Perspectives on the social sciences in global animal health governance: A qualitative study of experts","authors":"Dorien H. Braam , Salome A. Bukachi , Diego Leiva , Alex Tasker , Lisa Boden , Kevin Bardosh","doi":"10.1016/j.prevetmed.2025.106474","DOIUrl":"10.1016/j.prevetmed.2025.106474","url":null,"abstract":"<div><div>A global discourse continues to emphasize the importance of integrating the social sciences into health governance and systems research, including in the global animal health sector. By comparison to human health, however, it is unclear how far this discourse has changed institutional practices in animal health and what opportunities exist to strengthen this integration. We conducted a qualitative study to address these knowledge gaps, based on 29 semi-structured key informant interviews (KII) with experts involved in the global governance of animal health and biosecurity across five regions between November 2022 and June 2023. Inductive thematic analysis was used to analyse results, which were triangulated with findings from primary and secondary data sources. We divide our analysis into three sections: 1) governance landscape; 3) prioritization; and 3) the role of social science. First, we found that KII consider the global animal health governance landscape shaped by five main actor networks who operate under different institutional norms and mandates: international organizations, bilateral donors, the private sector, national governments, and regional organizations. Informants believed that bilateral donors have disproportionate levels of control and influence; national governments struggle with realistic fiscal planning; engaging the private sector remains challenging; international organizations exhibit tensions in their conflicting mandates; and regional organizations need to be more involved. Second, we found that the key priorities of the actor networks were influenced by core uncertainties and tensions. This included different narratives about risk and methods of risk assessment; conflicting values between health and economic development; and capacity scale problems between global and local networks. The field is perceived to be dominated by the global health security agenda and international trade, and disproportionately focused on pandemic threats. Third, we found that barriers to the integration of social science included disciplinary boundaries, given the dominance of the veterinary sciences; the preponderance of instrumentalized goals; and structural conditions that limited opportunities for knowledge translation. Overall, we found that while the social sciences are increasingly part of a global discourse improving global animal health governance and systems, their current application appears to be of limited range and effectiveness. Coordinated investment in truly interdisciplinary networks, with sufficient disciplinary independence, may help address these problems.</div></div>","PeriodicalId":20413,"journal":{"name":"Preventive veterinary medicine","volume":"238 ","pages":"Article 106474"},"PeriodicalIF":2.2,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Safe and effective transportation of livestock during disease outbreaks is crucial for maintaining agricultural productivity and economic stability. This work offers a novel perspective on the transportation of hazardous biological materials within the veterinary field. In response to the complex challenges of managing livestock disease outbreaks, we evaluated different routing measures for safe land transport of diseased animals or infected materials. The potential disease exposure risk to susceptible livestock populations during hypothetical transportation scenarios of infected livestock and specimens was estimated. A GIS-based framework was developed to integrate and manage raster-based Gridded Livestock of the World (GLW) data and vector-based road network data, which was used to implement a time-based risk (TBR) measure to support routing decisions of diseased animals. This approach not only considers time as a traditional routing metric but also incorporates livestock population distribution as a crucial factor in the disease exposure risk assessment. Along with the TBR measure, the shortest, fastest, and least population exposure measures are also evaluated as routing solution benchmarks. Analysis results based on two origin-destination pairs within Oklahoma, USA demonstrate that the TBR measure yields routes with the least impact on animal populations as compared to the shortest, fastest, and least population route, especially over longer distances. Our results underscore the importance of incorporating dynamic exposure risks in routing decisions to effectively minimize potential disease spread to vulnerable populations distributed along the path of transportation. This study also highlights the potential of GIS in enhancing biosecurity and disease control measures by optimizing transportation routes that consider various risk factors.
{"title":"A GIS-based framework for routing decisions to reduce livestock disease exposure risk","authors":"Ehsan Foroutan , Hongbo Yu , Jeremiah Saliki , Akhilesh Ramachandran","doi":"10.1016/j.prevetmed.2025.106472","DOIUrl":"10.1016/j.prevetmed.2025.106472","url":null,"abstract":"<div><div>Safe and effective transportation of livestock during disease outbreaks is crucial for maintaining agricultural productivity and economic stability. This work offers a novel perspective on the transportation of hazardous biological materials within the veterinary field. In response to the complex challenges of managing livestock disease outbreaks, we evaluated different routing measures for safe land transport of diseased animals or infected materials. The potential disease exposure risk to susceptible livestock populations during hypothetical transportation scenarios of infected livestock and specimens was estimated. A GIS-based framework was developed to integrate and manage raster-based Gridded Livestock of the World (GLW) data and vector-based road network data, which was used to implement a time-based risk (TBR) measure to support routing decisions of diseased animals. This approach not only considers time as a traditional routing metric but also incorporates livestock population distribution as a crucial factor in the disease exposure risk assessment. Along with the TBR measure, the shortest, fastest, and least population exposure measures are also evaluated as routing solution benchmarks. Analysis results based on two origin-destination pairs within Oklahoma, USA demonstrate that the TBR measure yields routes with the least impact on animal populations as compared to the shortest, fastest, and least population route, especially over longer distances. Our results underscore the importance of incorporating dynamic exposure risks in routing decisions to effectively minimize potential disease spread to vulnerable populations distributed along the path of transportation. This study also highlights the potential of GIS in enhancing biosecurity and disease control measures by optimizing transportation routes that consider various risk factors.</div></div>","PeriodicalId":20413,"journal":{"name":"Preventive veterinary medicine","volume":"238 ","pages":"Article 106472"},"PeriodicalIF":2.2,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143479937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}