Pub Date : 2026-02-01Epub Date: 2025-12-06DOI: 10.1016/j.tvjl.2025.106529
G. López-Lorenzo , A. Carvajal , A.A. Benito , A. Prieto , M. Melero , G. Fernández , J.M. Díaz-Cao
Lawsonia intracellularis is the etiological agent of porcine proliferative enteropathy (PPE), a major enteric disease present in most swine herds worldwide. PPE expression is influenced by several factors, making continuous surveillance essential to minimize its impact. This study evaluated the feasibility and diagnostic performance of environmental sampling for the detection of L. intracellularis in commercial swine farms with subclinical and PPE infections. Three farms (A–C) were included: Farms A and B exhibited subclinical infection, while Farm C was affected by a PPE outbreak. Longitudinal sampling included serum, fecal swabs, air and surface samples from 10 to 11 to 17–18 weeks of age. Serology and quantitative PCR (qPCR) were used to monitor infection and quantify L. intracellularis loads. L. intracellularis infection was confirmed in all three farms using standard diagnostic methods. DNA of L. intracellularis was consistently detected in air and surface samples, with distinct temporal patterns across farms. In subclinical infected herds, early low-level detection in air and surface samples preceded widespread shedding, which was subsequently reflected in increased seroprevalence. In the PPE affected farm, high seropositivity and fecal shedding were observed during the outbreak, followed by a gradual decline. These dynamics were also mirrored by the quantity of L. intracellularis DNA detected both in air and surfaces over time. These findings demonstrate that environmental monitoring via air and surface sampling is might be a possible tool in the future to predict infection dynamic under both subclinical and clinical PPE conditions, providing a complementary method for the early detection and surveillance of L. intracellularis.
{"title":"First evidence of Lawsonia intracellularis detection in air from commercial swine farms","authors":"G. López-Lorenzo , A. Carvajal , A.A. Benito , A. Prieto , M. Melero , G. Fernández , J.M. Díaz-Cao","doi":"10.1016/j.tvjl.2025.106529","DOIUrl":"10.1016/j.tvjl.2025.106529","url":null,"abstract":"<div><div><em>Lawsonia intracellularis</em> is the etiological agent of porcine proliferative enteropathy (PPE), a major enteric disease present in most swine herds worldwide. PPE expression is influenced by several factors, making continuous surveillance essential to minimize its impact. This study evaluated the feasibility and diagnostic performance of environmental sampling for the detection of <em>L. intracellularis</em> in commercial swine farms with subclinical and PPE infections. Three farms (A–C) were included: Farms A and B exhibited subclinical infection, while Farm C was affected by a PPE outbreak. Longitudinal sampling included serum, fecal swabs, air and surface samples from 10 to 11 to 17–18 weeks of age. Serology and quantitative PCR (qPCR) were used to monitor infection and quantify <em>L. intracellularis</em> loads. <em>L. intracellularis</em> infection was confirmed in all three farms using standard diagnostic methods. DNA of <em>L. intracellularis</em> was consistently detected in air and surface samples, with distinct temporal patterns across farms. In subclinical infected herds, early low-level detection in air and surface samples preceded widespread shedding, which was subsequently reflected in increased seroprevalence. In the PPE affected farm, high seropositivity and fecal shedding were observed during the outbreak, followed by a gradual decline. These dynamics were also mirrored by the quantity of <em>L. intracellularis</em> DNA detected both in air and surfaces over time. These findings demonstrate that environmental monitoring via air and surface sampling is might be a possible tool in the future to predict infection dynamic under both subclinical and clinical PPE conditions, providing a complementary method for the early detection and surveillance <em>of L. intracellularis</em>.</div></div>","PeriodicalId":23505,"journal":{"name":"Veterinary journal","volume":"315 ","pages":"Article 106529"},"PeriodicalIF":3.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145709636","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 : 2026-02-01Epub Date: 2025-11-28DOI: 10.1016/j.tvjl.2025.106519
Emmanuelle M. Butty , Jeff Barnes , Erica Reineke , Cedric Dufayet , Jiwoong Her , Larry D. Cowgill
New adsorptive devices for hemoperfusion are available in veterinary medicine for the management of toxin exposures and life-threatening toxin decontamination. This document is offered as the currently recommended standard-of-care and best practice guidelines derived from the clinical experiences of experts treating toxicities with hemoperfusion. Much of the evidence available to support recommendations on extracorporeal management of veterinary intoxications is limited, inconsistent, indirect, or of poor quality. Consequently, a formal consensus methodology which relies heavily on expert opinion was used to validate the proposed guidelines of the International Renal Interest Society’s (IRIS) Hemoperfusion Study Group. An independently selected voting panel of noted authorities in veterinary extracorporeal medicine were charged to vote and comment on each Study Group recommendation in isolation and without supplemental rationale. To achieve consensus, a minimum of 75 % of the voting participants chose “strongly agree” or “agree” compared to neutral or disagree responses. As this is a rapidly evolving therapeutic modality, and the technologies are changing with similar pace, we expect these clinical guidelines will also evolve rapidly. It will be important to review updates from the manufacturers of hemoperfusion devices to obtain the most current treatment recommendations for specific adsorptive devices.
{"title":"Hemoperfusion for veterinary toxicities: International renal interest society best practices consensus guidelines","authors":"Emmanuelle M. Butty , Jeff Barnes , Erica Reineke , Cedric Dufayet , Jiwoong Her , Larry D. Cowgill","doi":"10.1016/j.tvjl.2025.106519","DOIUrl":"10.1016/j.tvjl.2025.106519","url":null,"abstract":"<div><div>New adsorptive devices for hemoperfusion are available in veterinary medicine for the management of toxin exposures and life-threatening toxin decontamination. This document is offered as the currently recommended standard-of-care and best practice guidelines derived from the clinical experiences of experts treating toxicities with hemoperfusion. Much of the evidence available to support recommendations on extracorporeal management of veterinary intoxications is limited, inconsistent, indirect, or of poor quality. Consequently, a formal consensus methodology which relies heavily on expert opinion was used to validate the proposed guidelines of the International Renal Interest Society’s (IRIS) Hemoperfusion Study Group. An independently selected voting panel of noted authorities in veterinary extracorporeal medicine were charged to vote and comment on each Study Group recommendation in isolation and without supplemental rationale. To achieve consensus, a minimum of 75 % of the voting participants chose “strongly agree” or “agree” compared to neutral or disagree responses. As this is a rapidly evolving therapeutic modality, and the technologies are changing with similar pace, we expect these clinical guidelines will also evolve rapidly. It will be important to review updates from the manufacturers of hemoperfusion devices to obtain the most current treatment recommendations for specific adsorptive devices.</div></div>","PeriodicalId":23505,"journal":{"name":"Veterinary journal","volume":"315 ","pages":"Article 106519"},"PeriodicalIF":3.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145649431","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 : 2026-02-01Epub Date: 2026-01-10DOI: 10.1016/j.tvjl.2026.106555
Richard M. Payne
The recovery of greyhounds post-race has important welfare implications, primarily to avoid over-running and prevent greyhounds with subclinical injuries from racing. Both situations could reasonably be expected to reduce speed, which may be identified by comparing the successive race performances of individual greyhounds. The focus of this analysis was on reportedly sound greyhounds. Thus, the hypothesis was that changes in speed could be linked with the inter-race intervals, and that shorter inter-race intervals would compromise glycogen restoration and therefore affect performance in subsequent races. A dataset contained 206,686 runs made by 12,883 reportedly sound GBGB-licenced greyhounds and was analysed using multilevel (mixed effects) models. Speed was slightly elevated above baseline from two days between races and declined over increasing inter-race periods up to 12 days between races. Inter-race intervals of two or more days had no biologically significant effects and were less than the normal variations in speed. Due to an absence of data for one day between races, this period could not be modelled. The findings are consistent with the fact that glycogen stores are normally restored by two days after fast exercise, and a ruling that greyhounds should not race more frequently than every fourth day is reasonable and would include greyhounds which might take slightly longer to recover. Performance depression after four days’ rest might suggest a subclinical injury. Expanded datasets are required to determine the effect of a one-day gap between races.
{"title":"Modelling speed and inter-race intervals to assess post-race recovery in racing greyhounds","authors":"Richard M. Payne","doi":"10.1016/j.tvjl.2026.106555","DOIUrl":"10.1016/j.tvjl.2026.106555","url":null,"abstract":"<div><div>The recovery of greyhounds post-race has important welfare implications, primarily to avoid over-running and prevent greyhounds with subclinical injuries from racing. Both situations could reasonably be expected to reduce speed, which may be identified by comparing the successive race performances of individual greyhounds. The focus of this analysis was on reportedly sound greyhounds. Thus, the hypothesis was that changes in speed could be linked with the inter-race intervals, and that shorter inter-race intervals would compromise glycogen restoration and therefore affect performance in subsequent races. A dataset contained 206,686 runs made by 12,883 reportedly sound GBGB-licenced greyhounds and was analysed using multilevel (mixed effects) models. Speed was slightly elevated above baseline from two days between races and declined over increasing inter-race periods up to 12 days between races. Inter-race intervals of two or more days had no biologically significant effects and were less than the normal variations in speed. Due to an absence of data for one day between races, this period could not be modelled. The findings are consistent with the fact that glycogen stores are normally restored by two days after fast exercise, and a ruling that greyhounds should not race more frequently than every fourth day is reasonable and would include greyhounds which might take slightly longer to recover. Performance depression after four days’ rest might suggest a subclinical injury. Expanded datasets are required to determine the effect of a one-day gap between races.</div></div>","PeriodicalId":23505,"journal":{"name":"Veterinary journal","volume":"315 ","pages":"Article 106555"},"PeriodicalIF":3.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145960146","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 : 2026-02-01Epub Date: 2026-01-10DOI: 10.1016/j.tvjl.2026.106558
Soares KCRS, Roussouliéres IS, Barbosa CS, Lilenbaum W
Leptospirosis is a globally distributed zoonosis that affects livestock reproduction. The causative Leptospira spp. are highly adaptable and can colonize a wide range of hosts. Although the intraperitoneal (IP) route is commonly used in experimental models, it bypasses mucosal barriers and does not reflect natural transmission. In contrast, mucosal routes, such as the intravaginal (IVG) route, more closely mimic natural infection but remain poorly investigated. This study evaluated the IVG route as an experimental model for reproductive leptospirosis using adult female golden Syrian hamsters (Mesocricetus auratus) inoculated with Leptospira santarosai serovar Guaricura via IVG or IP routes. To enhance susceptibility and standardization, IVG inoculations were performed exclusively during the proestrus or estrus stages, as determined by vaginal cytology. Animals were monitored for up to 40 days and assessed by serology and PCR. IVG-inoculated animals developed systemic infection and genital colonization, although bacteremia occurred later than in the IP group. Both groups elicited similar humoral immune responses from day 7 onward, with animals remaining seropositive until the end of the study. Renal and genital colonization was confirmed by PCR in both groups, with no significant differences. Importantly, 60 % of IVG-inoculated animals remained PCR-positive in genital tissues for up to 40 days, indicating persistent subclinical infection. No clinical signs were observed in any of the groups. The IVG route proved effective in establishing chronic infection and better simulates the natural course of animal genital leptospirosis, supporting its use as a physiologically relevant experimental model.
{"title":"The genital route in experimental infection with Leptospira spp. in hamsters as a model for genital leptospirosis","authors":"Soares KCRS, Roussouliéres IS, Barbosa CS, Lilenbaum W","doi":"10.1016/j.tvjl.2026.106558","DOIUrl":"10.1016/j.tvjl.2026.106558","url":null,"abstract":"<div><div>Leptospirosis is a globally distributed zoonosis that affects livestock reproduction. The causative <em>Leptospira</em> spp. are highly adaptable and can colonize a wide range of hosts. Although the intraperitoneal (IP) route is commonly used in experimental models, it bypasses mucosal barriers and does not reflect natural transmission. In contrast, mucosal routes, such as the intravaginal (IVG) route, more closely mimic natural infection but remain poorly investigated. This study evaluated the IVG route as an experimental model for reproductive leptospirosis using adult female golden Syrian hamsters (<em>Mesocricetus auratus</em>) inoculated with <em>Leptospira santarosai</em> serovar Guaricura via IVG or IP routes. To enhance susceptibility and standardization, IVG inoculations were performed exclusively during the proestrus or estrus stages, as determined by vaginal cytology. Animals were monitored for up to 40 days and assessed by serology and PCR. IVG-inoculated animals developed systemic infection and genital colonization, although bacteremia occurred later than in the IP group. Both groups elicited similar humoral immune responses from day 7 onward, with animals remaining seropositive until the end of the study. Renal and genital colonization was confirmed by PCR in both groups, with no significant differences. Importantly, 60 % of IVG-inoculated animals remained PCR-positive in genital tissues for up to 40 days, indicating persistent subclinical infection. No clinical signs were observed in any of the groups. The IVG route proved effective in establishing chronic infection and better simulates the natural course of animal genital leptospirosis, supporting its use as a physiologically relevant experimental model.</div></div>","PeriodicalId":23505,"journal":{"name":"Veterinary journal","volume":"315 ","pages":"Article 106558"},"PeriodicalIF":3.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145960205","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 : 2026-02-01Epub Date: 2026-01-13DOI: 10.1016/j.tvjl.2026.106561
Abdul Ghafar , Bahar E. Mustafa , Charles Gauci , Ian Beveridge , Robin B. Gasser , Ard M. Nijhof , Abdul Jabbar
Haemaphysalis longicornis is a parthenogenetic three-host tick that has expanded from East Asia into Australasia and the Americas, where it poses increasing veterinary and public-health concern. Yet, laboratory research has been constrained partly by the absence of a reliable artificial feeding system. Here, we establish and optimise an artificial, host-free in vitro feeding platform for adult H. longicornis, utilising a thin silicone membrane that overcomes the species’ short hypostome and limited mouthpart mobility. Across six independent experiments using field-collected parthenogenetic adult females from Australia, 67 % (35/52) of ticks attached and 74.3 % (26/35) engorged, achieving a mean engorgement weight of 161 mg (range: 44.8–275 mg), a mean egg mass of 67 mg (11.4–137 mg) and mean bloodmeal-to-egg conversion efficiency of 40 % (range: 16.7–59.9 %). All engorged females oviposited and produced viable larvae, with egg hatchability exceeding 92 % (mean ∼98 %) and engorgement weight strongly associating with fecundity (r = 0.82). Feeding was completed within 2–7 days, comparable to, or shorter than, feeding on live hosts; hair extract treatment did not enhance feeding or reproductive performance. This host-free system essentially replicates natural feeding performance under controlled laboratory conditions and supports the complete reproductive cycle of adult H. longicornis without an animal host. It provides a reproducible and ethical platform for acaricide and vaccine discovery and studies of tick physiology and pathogen–vector interactions, establishing a foundation for standardised, scalable and welfare-compliant tick research within a One Health framework.
{"title":"A reproducible, host-free feeding system for adult Haemaphysalis longicornis","authors":"Abdul Ghafar , Bahar E. Mustafa , Charles Gauci , Ian Beveridge , Robin B. Gasser , Ard M. Nijhof , Abdul Jabbar","doi":"10.1016/j.tvjl.2026.106561","DOIUrl":"10.1016/j.tvjl.2026.106561","url":null,"abstract":"<div><div><em>Haemaphysalis longicornis</em> is a parthenogenetic three-host tick that has expanded from East Asia into Australasia and the Americas, where it poses increasing veterinary and public-health concern. Yet, laboratory research has been constrained partly by the absence of a reliable artificial feeding system. Here, we establish and optimise an artificial, host-free <em>in vitro</em> feeding platform for adult <em>H. longicornis</em>, utilising a thin silicone membrane that overcomes the species’ short hypostome and limited mouthpart mobility. Across six independent experiments using field-collected parthenogenetic adult females from Australia, 67 % (35/52) of ticks attached and 74.3 % (26/35) engorged, achieving a mean engorgement weight of 161 mg (range: 44.8–275 mg), a mean egg mass of 67 mg (11.4–137 mg) and mean bloodmeal-to-egg conversion efficiency of 40 % (range: 16.7–59.9 %). All engorged females oviposited and produced viable larvae, with egg hatchability exceeding 92 % (mean ∼98 %) and engorgement weight strongly associating with fecundity (r = 0.82). Feeding was completed within 2–7 days, comparable to, or shorter than, feeding on live hosts; hair extract treatment did not enhance feeding or reproductive performance. This host-free system essentially replicates natural feeding performance under controlled laboratory conditions and supports the complete reproductive cycle of adult <em>H. longicornis</em> without an animal host. It provides a reproducible and ethical platform for acaricide and vaccine discovery and studies of tick physiology and pathogen–vector interactions, establishing a foundation for standardised, scalable and welfare-compliant tick research within a One Health framework.</div></div>","PeriodicalId":23505,"journal":{"name":"Veterinary journal","volume":"315 ","pages":"Article 106561"},"PeriodicalIF":3.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145976312","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 : 2026-02-01Epub Date: 2025-12-11DOI: 10.1016/j.tvjl.2025.106535
Elif Ünlü , Nihal Y. Gül Satar , Serpil Kâhya Demirbilek , Selda Beker
Otitis externa (OE), an inflammation of the external ear canal, is common in both humans and companion animals and often requires prolonged antimicrobial therapy. Ozone has gained attention for its antimicrobial, antiviral, and antioxidant properties in dermatologic disorders, although its optimal dose and route of administration remain unclear. This study aimed to evaluate the efficacy of topical ozone therapy for managing OE compared with conventional antimicrobial treatments. Twenty-seven client-owned dogs with OE were enrolled in an open-label, prospective, controlled clinical trial and assigned to three groups: ozone (Group I), ciprofloxacin drops (Group II), and a veterinary otic solution with florfenicol, terbinafine, and mometasone furoate (Group III). Clinical assessments (OTIS-3, otoscopy, pain, pruritus, cytology) were performed on days 0, 7, 14, and 21, with bacteriological evaluations on days 0 and 21. Based on OTIS-3, treatment success rates were 100 % in Group I, 33.33 % in Group II, and 66.66 % in Group III. Significant improvements in OTIS-3, otoscopy, pain, and pruritus scores were observed in Group I compared to Group II (p < 0.05). Cytological improvement was significant in Groups I (p < 0.001) and III (p = 0.003). Microbiological analysis confirmed the complete absence of bacterial growth in Group I, effectively eliminating Staphylococcus pseudointermedius, Proteus mirabilis, Bacillus spp., Citrobacter braakii, Coagulase-Negative Staphylococci, Escherichia coli, Dermacoccus nishiomiyaensis, and multidrug-resistant Acinetobacter baumannii. These findings highlight the potential of topical ozone therapy as a safe and effective option for the management of otitis externa, with important implications for reducing antimicrobial use and mitigating antimicrobial resistance.
{"title":"A novel approach to treating canine otitis externa with medical ozone: A comparative clinical, cytological and microbiological research","authors":"Elif Ünlü , Nihal Y. Gül Satar , Serpil Kâhya Demirbilek , Selda Beker","doi":"10.1016/j.tvjl.2025.106535","DOIUrl":"10.1016/j.tvjl.2025.106535","url":null,"abstract":"<div><div>Otitis externa (OE), an inflammation of the external ear canal, is common in both humans and companion animals and often requires prolonged antimicrobial therapy. Ozone has gained attention for its antimicrobial, antiviral, and antioxidant properties in dermatologic disorders, although its optimal dose and route of administration remain unclear. This study aimed to evaluate the efficacy of topical ozone therapy for managing OE compared with conventional antimicrobial treatments. Twenty-seven client-owned dogs with OE were enrolled in an open-label, prospective, controlled clinical trial and assigned to three groups: ozone (Group I), ciprofloxacin drops (Group II), and a veterinary otic solution with florfenicol, terbinafine, and mometasone furoate (Group III). Clinical assessments (OTIS-3, otoscopy, pain, pruritus, cytology) were performed on days 0, 7, 14, and 21, with bacteriological evaluations on days 0 and 21. Based on OTIS-3, treatment success rates were 100 % in Group I, 33.33 % in Group II, and 66.66 % in Group III. Significant improvements in OTIS-3, otoscopy, pain, and pruritus scores were observed in Group I compared to Group II (<em>p</em> < 0.05). Cytological improvement was significant in Groups I (<em>p</em> < 0.001) and III (<em>p</em> = 0.003). Microbiological analysis confirmed the complete absence of bacterial growth in Group I, effectively eliminating <em>Staphylococcus pseudointermedius, Proteus mirabilis, Bacillus</em> spp., <em>Citrobacter braakii</em>, <em>Coagulase-Negative Staphylococci</em>, <em>Escherichia coli, Dermacoccus nishiomiyaensis</em>, and multidrug-resistant <em>Acinetobacter baumannii</em>. These findings highlight the potential of topical ozone therapy as a safe and effective option for the management of otitis externa, with important implications for reducing antimicrobial use and mitigating antimicrobial resistance.</div></div>","PeriodicalId":23505,"journal":{"name":"Veterinary journal","volume":"315 ","pages":"Article 106535"},"PeriodicalIF":3.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145752358","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 : 2026-02-01Epub Date: 2025-11-25DOI: 10.1016/j.tvjl.2025.106506
Mark Samson , Daniel Geofry. ThankGod , Helen Gyang. Luka , Oluwatoyin Ruth. Morenikeji , Agnes Tinuke. Laleye , Saidu Ganih. Joel , Eche Onah. Otapka , Filibus Danjuma. Dami , Dung Davou. Pam , Nathan Yakubu. Shehu , Pam Dachung. Luka
Torque teno sus virus (TTSuV) is a ubiquitous virus affecting domestic pigs and wild boars, classified into two major species: TTSuV1 and TTSuV2. In Nigeria, there is a paucity of information on TTSuV. This study investigated the prevalence, genetic diversity, and phylogenetic relationships of TTSuV genotypes in domestic pigs in Nigeria, as well as those found globally. A total of 94 (47 serum and 47 tissue) samples collected from pigs across the six geopolitical zones of Nigeria were analysed using PCR and sequencing techniques. Phylogenetic analysis was conducted to compare the sequences with those around the globe. The overall prevalence of TTSuV infection was 81 %. The Southwest zone recorded the highest prevalence (89.29 %), followed by the North Central zone (86.67 %), and the South recorded the least (33.33 %). TTSuV1 was the most common genotype, detected in 37.23 % of samples, while TTSuVk2a (15.96 %) and TTSuVk2b (27.66 %) were also prevalent. TTSuVk2b was newly reported in Nigeria, with a higher prevalence in 2023 compared to 2022. Coinfections between multiple TTSuV genotypes were common, particularly in the North Central zone, where 57.14 % of pigs were co-infected with TTSuVk2a and TTSuVk2b. The Nigerian strains of TTSuV closely clustered with global strains, indicating a high degree of genetic similarity. This suggests the role of international trade in the spread of TTSuV and provides useful molecular insights into patterns of animal movement and potential co-infections with other swine viruses. Thus, there is a need for continuous surveillance of TTSuV, particularly in regions where pig farming is prominent.
{"title":"Molecular detection of Torque teno sus virus from domestic pigs in North Central, Nigeria, 2022–2023","authors":"Mark Samson , Daniel Geofry. ThankGod , Helen Gyang. Luka , Oluwatoyin Ruth. Morenikeji , Agnes Tinuke. Laleye , Saidu Ganih. Joel , Eche Onah. Otapka , Filibus Danjuma. Dami , Dung Davou. Pam , Nathan Yakubu. Shehu , Pam Dachung. Luka","doi":"10.1016/j.tvjl.2025.106506","DOIUrl":"10.1016/j.tvjl.2025.106506","url":null,"abstract":"<div><div>Torque teno sus virus (TTSuV) is a ubiquitous virus affecting domestic pigs and wild boars, classified into two major species: TTSuV1 and TTSuV2. In Nigeria, there is a paucity of information on TTSuV. This study investigated the prevalence, genetic diversity, and phylogenetic relationships of TTSuV genotypes in domestic pigs in Nigeria, as well as those found globally. A total of 94 (47 serum and 47 tissue) samples collected from pigs across the six geopolitical zones of Nigeria were analysed using PCR and sequencing techniques. Phylogenetic analysis was conducted to compare the sequences with those around the globe. The overall prevalence of TTSuV infection was 81 %. The Southwest zone recorded the highest prevalence (89.29 %), followed by the North Central zone (86.67 %), and the South recorded the least (33.33 %). TTSuV1 was the most common genotype, detected in 37.23 % of samples, while TTSuVk2a (15.96 %) and TTSuVk2b (27.66 %) were also prevalent. TTSuVk2b was newly reported in Nigeria, with a higher prevalence in 2023 compared to 2022. Coinfections between multiple TTSuV genotypes were common, particularly in the North Central zone, where 57.14 % of pigs were co-infected with TTSuVk2a and TTSuVk2b. The Nigerian strains of TTSuV closely clustered with global strains, indicating a high degree of genetic similarity. This suggests the role of international trade in the spread of TTSuV and provides useful molecular insights into patterns of animal movement and potential co-infections with other swine viruses. Thus, there is a need for continuous surveillance of TTSuV, particularly in regions where pig farming is prominent.</div></div>","PeriodicalId":23505,"journal":{"name":"Veterinary journal","volume":"315 ","pages":"Article 106506"},"PeriodicalIF":3.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145624873","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 : 2026-02-01Epub Date: 2026-01-16DOI: 10.1016/j.tvjl.2026.106557
Imadidden Musallam , Julio Pinto , Ravi Bandara Dissanayake , Muhammad Usman Zaheer , Zaidoun Hijazeen , Wafa’a Ramadneh , Iqbal Qatananni , Esam Hawa , Majed Hawaowsheh , Ehab Abu-Basha , Aida binti Muhid , Jamaliah binti Senawi , Mariani binti Hashim , Muhammad Nazri bin Khairuddin , Janice Garcia , Blesilda C. Verin , Jasmine Magtibay , Anil Demeli , Kemal Yilmaz , Sedat Ildiz , Javier Guitian
A training needs assessment (TNA) toolkit was developed by adapting the Hennessy–Hicks questionnaire to evaluate field veterinary epidemiology training needs within the national Veterinary Services of Jordan, Malaysia, the Philippines, Turkey, and Ukraine. The toolkit comprises two questionnaires that assess frontline and intermediate field epidemiology core competencies defined by the FAO and can be used to evaluate training needs at both individual and organisational levels.
Frontline veterinarians in the five countries completed the questionnaires electronically. Additionally, face-to-face workshops held in Jordan, Malaysia, the Philippines, and Turkey—attended by key informants, line managers, and frontline veterinarians—provided opportunities for deeper discussion and refinement of training needs.
Training Needs Indexes (TNIs), defined as the difference between criticality and current performance levels and derived from responses of frontline veterinarians and their supervisors, indicated that most of the 32 frontline and 30 intermediate competencies were considered critical for effective performance. However, current performance ratings varied across countries, with higher scores in Jordan, Turkey, and Ukraine, and lower scores in Malaysia and the Philippines. TNIs from group discussions were higher than those from individual online responses, suggesting that veterinarians may overestimate their performance when self-assessing.
Differences in frequency ratings reflected the diverse roles of frontline veterinarians across countries, shaping which competencies were prioritised for further training. The toolkit’s reliance on self-assessment was identified as a limitation, though this can be mitigated by supplementing individual assessments with group discussions. Competencies with high TNIs at both levels were classified as priorities to guide future training activities.
{"title":"A toolkit for the assessment of training needs and gaps of the national Veterinary Services in field epidemiology","authors":"Imadidden Musallam , Julio Pinto , Ravi Bandara Dissanayake , Muhammad Usman Zaheer , Zaidoun Hijazeen , Wafa’a Ramadneh , Iqbal Qatananni , Esam Hawa , Majed Hawaowsheh , Ehab Abu-Basha , Aida binti Muhid , Jamaliah binti Senawi , Mariani binti Hashim , Muhammad Nazri bin Khairuddin , Janice Garcia , Blesilda C. Verin , Jasmine Magtibay , Anil Demeli , Kemal Yilmaz , Sedat Ildiz , Javier Guitian","doi":"10.1016/j.tvjl.2026.106557","DOIUrl":"10.1016/j.tvjl.2026.106557","url":null,"abstract":"<div><div>A training needs assessment (TNA) toolkit was developed by adapting the Hennessy–Hicks questionnaire to evaluate field veterinary epidemiology training needs within the national Veterinary Services of Jordan, Malaysia, the Philippines, Turkey, and Ukraine. The toolkit comprises two questionnaires that assess frontline and intermediate field epidemiology core competencies defined by the FAO and can be used to evaluate training needs at both individual and organisational levels.</div><div>Frontline veterinarians in the five countries completed the questionnaires electronically. Additionally, face-to-face workshops held in Jordan, Malaysia, the Philippines, and Turkey—attended by key informants, line managers, and frontline veterinarians—provided opportunities for deeper discussion and refinement of training needs.</div><div>Training Needs Indexes (TNIs), defined as the difference between criticality and current performance levels and derived from responses of frontline veterinarians and their supervisors, indicated that most of the 32 frontline and 30 intermediate competencies were considered critical for effective performance. However, current performance ratings varied across countries, with higher scores in Jordan, Turkey, and Ukraine, and lower scores in Malaysia and the Philippines. TNIs from group discussions were higher than those from individual online responses, suggesting that veterinarians may overestimate their performance when self-assessing.</div><div>Differences in frequency ratings reflected the diverse roles of frontline veterinarians across countries, shaping which competencies were prioritised for further training. The toolkit’s reliance on self-assessment was identified as a limitation, though this can be mitigated by supplementing individual assessments with group discussions. Competencies with high TNIs at both levels were classified as priorities to guide future training activities.</div></div>","PeriodicalId":23505,"journal":{"name":"Veterinary journal","volume":"315 ","pages":"Article 106557"},"PeriodicalIF":3.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145998929","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 : 2026-02-01Epub Date: 2026-01-07DOI: 10.1016/j.tvjl.2026.106548
Hilla Chen , Larry D. Cowgill , Thierry Francey , Rosanne E. Jepson , Catherine Langston , Ariane Schweighauser , Gilad Segev
Acute kidney injury (AKI) is a significant cause of morbidity and mortality in small animal practice. Early recognition and medical management form the basis of treatment, however, for dogs and cats with severe AKI, resulting in the development of uremic metabolic derangements and oligoanuria, advanced renal replacement therapy (RRT) should be considered. Different platforms (i.e. machines) and modalities are available for the delivery of RRT including intermittent hemodialysis (IHD) and continuous renal replacement therapy (CRRT) providing different but complimentary therapeutic options for the management of AKI. Intermittent hemodialysis is a short (i.e., few hours) and typically highly efficient treatment, whereas CRRT typically is less efficient but delivered continuously (≥24 h) which brings some advantages, especially for severely uremic or hemodynamically unstable animals. Working within the constraints of veterinary medicine and limitations that may exist in hospital staffing, facilities and finances, hybrid therapeutic protocols (e.g. prolonged intermittent renal replacement therapy (PIRRT; 6–12 h)) and transitional-CRRT (12–24 h) have been developed to advance the use of renal replacement platforms to fit with these logistical requirements. The literature on CRRT in veterinary patients is extremely limited, however, the demand for extracorporeal-based RRT therapies is expanding rapidly. Therefore, guidelines are required to ensure safe and effective operation and to optimize the management of dogs and cats with AKI using these platforms. To that end, these consensus-based best practice guidelines provide current knowledge on veterinary patient considerations, prescription, anti-coagulation, machine-based monitoring and commonly identified complications that may be experienced during CRRT, based on collective expert opinion.
{"title":"International renal interest society best practice consensus guidelines on the use of continuous renal replacement therapy in dogs and cats","authors":"Hilla Chen , Larry D. Cowgill , Thierry Francey , Rosanne E. Jepson , Catherine Langston , Ariane Schweighauser , Gilad Segev","doi":"10.1016/j.tvjl.2026.106548","DOIUrl":"10.1016/j.tvjl.2026.106548","url":null,"abstract":"<div><div>Acute kidney injury (AKI) is a significant cause of morbidity and mortality in small animal practice. Early recognition and medical management form the basis of treatment, however, for dogs and cats with severe AKI, resulting in the development of uremic metabolic derangements and oligoanuria, advanced renal replacement therapy (RRT) should be considered. Different platforms (i.e. machines) and modalities are available for the delivery of RRT including intermittent hemodialysis (IHD) and continuous renal replacement therapy (CRRT) providing different but complimentary therapeutic options for the management of AKI. Intermittent hemodialysis is a short (i.e., few hours) and typically highly efficient treatment, whereas CRRT typically is less efficient but delivered continuously (≥24 h) which brings some advantages, especially for severely uremic or hemodynamically unstable animals. Working within the constraints of veterinary medicine and limitations that may exist in hospital staffing, facilities and finances, hybrid therapeutic protocols (e.g. prolonged intermittent renal replacement therapy (PIRRT; 6–12 h)) and transitional-CRRT (12–24 h) have been developed to advance the use of renal replacement platforms to fit with these logistical requirements. The literature on CRRT in veterinary patients is extremely limited, however, the demand for extracorporeal-based RRT therapies is expanding rapidly. Therefore, guidelines are required to ensure safe and effective operation and to optimize the management of dogs and cats with AKI using these platforms. To that end, these consensus-based best practice guidelines provide current knowledge on veterinary patient considerations, prescription, anti-coagulation, machine-based monitoring and commonly identified complications that may be experienced during CRRT, based on collective expert opinion.</div></div>","PeriodicalId":23505,"journal":{"name":"Veterinary journal","volume":"315 ","pages":"Article 106548"},"PeriodicalIF":3.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145946424","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}