Pub Date : 2021-11-23DOI: 10.14202/ijoh.2021.212-219
Souadkia Sarra, M. Arsène, V. E. Grigorievna, Podoprigora Irina Victorovna, Y. N. Vyacheslavovna, Borechova Marina Nikolaïevna
Background and Aim: Uropathogenic Escherichia coli (UPEC) is commonly involved in urinary tract infections (UTIs), which are generally treated with antibiotics. However, the emergence of multidrug-resistant (MDR) strains of UPEC has made the treatment difficult. There is thus a need to continuously assess their sensitivity to antibiotics. This study aimed to determine the antibiotic resistance patterns and MDR phenotypes of UPEC strains isolated from children diagnosed with UTIs at the Russian Children's Clinical Hospital in Moscow, Russia. Materials and Methods: Kirby–Bauer's disc diffusion method was used to study the sensitivity to antibiotics of 106 UPEC isolates from urine specimens from children (aged from 9 months to 18 years old) diagnosed with UTIs. The results were interpreted in accordance with the Clinical and Laboratory Standards Institute guidelines and the correlations of variables with the degree to which each antibiotic inhibited the UPEC strains in terms of diameter on the disc were determined using Spearman's rank correlation test. A t-test and principal component analysis were performed to visualize the correlations of the susceptibility of UPEC to antibiotics with the age and sex of the patients. Statistical significance was set at p≤0.05. Results: Among the 106 UPEC strains tested, none (0%) showed resistance to fosfomycin (FO), while 84 (79.2%) were resistant (R) to at least one antibiotic. The highest rates of resistance were observed to amoxicillin (69.8%), ampicillin (62.3%), cefazolin (39.6%), trimethoprim (TR) (37.7%), ceftriaxone (34.9%), and tetracycline (33.0%). Interestingly, 22 (20.8%) strains were R to imipenem. UPEC isolates from males aged 1-6 years were more R to antibiotics than those from the other groups, with the exception of TR, to which UPEC isolates from females aged 13-18 years old were less sensitive (S). The multidrug-resistance (MDR) index ranged between 0.00 and 0.75 and we found that more than a quarter of UPEC (31/106) had an MDR index ≥0.5 and only 22 (20.7%) strains were S to all antibiotics tested (MDR index=0). Finally, Spearman's rank correlation test showed that, with the exception of FO, there were correlations between the inhibition diameters of all other antibiotics. Conclusion: FO is the only antibiotic to which all UPECs were S and may be suggested as the first line of treatment for UPEC. Further research is needed to continue monitoring antibiotic resistance and to investigate the genetic features associated with such resistance observed in this study.
{"title":"Antibiotic resistance pattern of uropathogenic Escherichia coli isolated from children with symptomatic urinary tract infection in Moscow, Russia","authors":"Souadkia Sarra, M. Arsène, V. E. Grigorievna, Podoprigora Irina Victorovna, Y. N. Vyacheslavovna, Borechova Marina Nikolaïevna","doi":"10.14202/ijoh.2021.212-219","DOIUrl":"https://doi.org/10.14202/ijoh.2021.212-219","url":null,"abstract":"Background and Aim: Uropathogenic Escherichia coli (UPEC) is commonly involved in urinary tract infections (UTIs), which are generally treated with antibiotics. However, the emergence of multidrug-resistant (MDR) strains of UPEC has made the treatment difficult. There is thus a need to continuously assess their sensitivity to antibiotics. This study aimed to determine the antibiotic resistance patterns and MDR phenotypes of UPEC strains isolated from children diagnosed with UTIs at the Russian Children's Clinical Hospital in Moscow, Russia.\u0000\u0000Materials and Methods: Kirby–Bauer's disc diffusion method was used to study the sensitivity to antibiotics of 106 UPEC isolates from urine specimens from children (aged from 9 months to 18 years old) diagnosed with UTIs. The results were interpreted in accordance with the Clinical and Laboratory Standards Institute guidelines and the correlations of variables with the degree to which each antibiotic inhibited the UPEC strains in terms of diameter on the disc were determined using Spearman's rank correlation test. A t-test and principal component analysis were performed to visualize the correlations of the susceptibility of UPEC to antibiotics with the age and sex of the patients. Statistical significance was set at p≤0.05.\u0000\u0000Results: Among the 106 UPEC strains tested, none (0%) showed resistance to fosfomycin (FO), while 84 (79.2%) were resistant (R) to at least one antibiotic. The highest rates of resistance were observed to amoxicillin (69.8%), ampicillin (62.3%), cefazolin (39.6%), trimethoprim (TR) (37.7%), ceftriaxone (34.9%), and tetracycline (33.0%). Interestingly, 22 (20.8%) strains were R to imipenem. UPEC isolates from males aged 1-6 years were more R to antibiotics than those from the other groups, with the exception of TR, to which UPEC isolates from females aged 13-18 years old were less sensitive (S). The multidrug-resistance (MDR) index ranged between 0.00 and 0.75 and we found that more than a quarter of UPEC (31/106) had an MDR index ≥0.5 and only 22 (20.7%) strains were S to all antibiotics tested (MDR index=0). Finally, Spearman's rank correlation test showed that, with the exception of FO, there were correlations between the inhibition diameters of all other antibiotics.\u0000\u0000Conclusion: FO is the only antibiotic to which all UPECs were S and may be suggested as the first line of treatment for UPEC. Further research is needed to continue monitoring antibiotic resistance and to investigate the genetic features associated with such resistance observed in this study.","PeriodicalId":37300,"journal":{"name":"International Journal of One Health","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41625140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.14202/ijoh.2021.151-157
Seulgi Kim, Chulwoo Rhee, S. Kang, Sangwoo Tak
Background and Aim: Little is known about data integration in public health research and its impact. This study aimed to summarize known collaboration information, the characteristics of the datasets used, the methods of data integration, and knowledge gaps. Materials and Methods: We reviewed papers on infectious diseases from two or more datasets published during 2009- 2018, before the coronavirus disease pandemic. Two independent researchers searched the Medline and Global Health databases using predetermined criteria. Results: Of the 2375 items retrieved, 2272 titles and abstracts were reviewed. Of these, 164 were secondary reviews. Full-text reviews identified 153 relevant articles; we excluded 11 papers that did not meet our inclusion criteria. Of the 153 papers, 150 were single-country studies. Most papers were from North America (n=47). Viral diseases were the most commonly researched diseases (n=66), and many studies sought to define infection rates (n=62). Data integration usually employed unique national identifiers (n=37) or address-based identifiers (n=30). Two data sources were combined (n=121), and at least one data source typically included routine surveillance information. Conclusion: We found a growing usage of data integration in infectious diseases, emphasizing the advantages of data integration and linkage analysis, and reiterating its importance in public health emergency preparedness and response.
{"title":"A scoping review on data integration in the field of infectious diseases, 2009-2018","authors":"Seulgi Kim, Chulwoo Rhee, S. Kang, Sangwoo Tak","doi":"10.14202/ijoh.2021.151-157","DOIUrl":"https://doi.org/10.14202/ijoh.2021.151-157","url":null,"abstract":"Background and Aim: Little is known about data integration in public health research and its impact. This study aimed to summarize known collaboration information, the characteristics of the datasets used, the methods of data integration, and knowledge gaps. Materials and Methods: We reviewed papers on infectious diseases from two or more datasets published during 2009- 2018, before the coronavirus disease pandemic. Two independent researchers searched the Medline and Global Health databases using predetermined criteria. Results: Of the 2375 items retrieved, 2272 titles and abstracts were reviewed. Of these, 164 were secondary reviews. Full-text reviews identified 153 relevant articles; we excluded 11 papers that did not meet our inclusion criteria. Of the 153 papers, 150 were single-country studies. Most papers were from North America (n=47). Viral diseases were the most commonly researched diseases (n=66), and many studies sought to define infection rates (n=62). Data integration usually employed unique national identifiers (n=37) or address-based identifiers (n=30). Two data sources were combined (n=121), and at least one data source typically included routine surveillance information. Conclusion: We found a growing usage of data integration in infectious diseases, emphasizing the advantages of data integration and linkage analysis, and reiterating its importance in public health emergency preparedness and response.","PeriodicalId":37300,"journal":{"name":"International Journal of One Health","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66734177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.14202/ijoh.2021.204-211
U. Apriliana, H. Wibawa, E. Ruhiat, T. Untari, S. Indarjulianto
Background and Aim: Anthrax is a non-contagious infectious disease caused by Bacillus anthracis. The bacteria form spores that are resistant to extreme conditions and can contaminate the environment for decades. This study aimed to detect and characterize B. anthracis found in endemic areas of anthrax in Yogyakarta and Central Java province, Indonesia. Materials and Methods: Soil samples were collected from Gunungkidul regency, Yogyakarta province (n=315) and Boyolali regency, Central Java province (n=100). Additional soil samples (n=10) and straw samples (n=5) were obtained from Pati regency, Central Java province. The isolation and identification of B. anthracis were performed using conventional methods: Morphology of bacteria colony in solid media, Gram staining, capsule staining, spores staining, and motility test. Isolates were further identified using polymerase chain reaction (PCR) against Ba813, lef (pXO1), and capC (pXO2) gene. An avirulent vaccine strain of B. anthracis (strain 34F2) was used as a control. Results: Only four samples grew on blood agar with a ground-glass appearance, white-gray colony (Gunungkidul and avirulent strain) or yellowish (Boyolali and Pati). All were Gram-positive, presented chains, square-ended rods, spores, and were then identified as B. anthracis. Boyolali, Pati, and avirulent strain isolates had slightly different characteristics, including the growth of non-mucoid in the bicarbonate agar medium, and their uncapsulated form. The PCR showed two Gunungkidul isolates which amplified three genes, including Ba813, lef, and capC. Contrarily, the other isolates did not amplify the capC gene. Conclusion: Gunungkidul isolates were identified as virulent strains of B. anthracis while Boyolali and Pati isolates were proposed as avirulent strains. This is the first report of isolation and identification of avirulent strains of B. anthracis in Central Java, Indonesia.
{"title":"Isolation and identification of avirulent strains of Bacillus anthracis from environmental samples in Central Java, Indonesia","authors":"U. Apriliana, H. Wibawa, E. Ruhiat, T. Untari, S. Indarjulianto","doi":"10.14202/ijoh.2021.204-211","DOIUrl":"https://doi.org/10.14202/ijoh.2021.204-211","url":null,"abstract":"Background and Aim: Anthrax is a non-contagious infectious disease caused by Bacillus anthracis. The bacteria form spores that are resistant to extreme conditions and can contaminate the environment for decades. This study aimed to detect and characterize B. anthracis found in endemic areas of anthrax in Yogyakarta and Central Java province, Indonesia. Materials and Methods: Soil samples were collected from Gunungkidul regency, Yogyakarta province (n=315) and Boyolali regency, Central Java province (n=100). Additional soil samples (n=10) and straw samples (n=5) were obtained from Pati regency, Central Java province. The isolation and identification of B. anthracis were performed using conventional methods: Morphology of bacteria colony in solid media, Gram staining, capsule staining, spores staining, and motility test. Isolates were further identified using polymerase chain reaction (PCR) against Ba813, lef (pXO1), and capC (pXO2) gene. An avirulent vaccine strain of B. anthracis (strain 34F2) was used as a control. Results: Only four samples grew on blood agar with a ground-glass appearance, white-gray colony (Gunungkidul and avirulent strain) or yellowish (Boyolali and Pati). All were Gram-positive, presented chains, square-ended rods, spores, and were then identified as B. anthracis. Boyolali, Pati, and avirulent strain isolates had slightly different characteristics, including the growth of non-mucoid in the bicarbonate agar medium, and their uncapsulated form. The PCR showed two Gunungkidul isolates which amplified three genes, including Ba813, lef, and capC. Contrarily, the other isolates did not amplify the capC gene. Conclusion: Gunungkidul isolates were identified as virulent strains of B. anthracis while Boyolali and Pati isolates were proposed as avirulent strains. This is the first report of isolation and identification of avirulent strains of B. anthracis in Central Java, Indonesia.","PeriodicalId":37300,"journal":{"name":"International Journal of One Health","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66734370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.14202/ijoh.2021.182-189
M. Savadogo, Hamidou Zangré, Sougrenoma Désiré Nana, A. K. Ilboudo, L. D. Dahourou, S. G. Ilboudo, Virginie Simonis, K. A. Sondo, A. Akakpo, Z. Tarnagda, R. Alambedji
Background and Aim: Rabies is a neglected zoonotic disease transmissible to humans and domestic and wild animals through biting, scratching, or licking. This study aimed to analyze the adoption of the One Health approach by the stakeholders involved in rabies control in Burkina Faso. Materials and Methods: The stakeholders involved in rabies control were from the Ministry of Livestock, Ministry of Health, Ministry of the Territory Administration, Ministry of Environment and Wildlife, and Ministry of Higher Education and Research. A structured questionnaire was used in face-to-face interviews to collect data from the stakeholders. The collected data included stakeholders' knowledge of rabies and the One Health approach and their levels of involvement in the multisectoral collaboration. Results: Most participants could not describe rabies correctly (80%), and only 52.9% had heard of the One Health approach. In addition, there was no significant association between knowledge of rabies and participants' characteristics, and the knowledge of the One Health approach was significantly influenced by a participant's affiliation (place of work). Conclusion: The results call for an increase in One Health education for its effective adoption by all the rabies control stakeholders. Additional efforts should focus on continual training of the One Health workforce, from policy-makers to frontline personnel.
{"title":"Adoption of the One Health approach to improve zoonosis control in low-income countries: Insights from the case of rabies management in Burkina Faso","authors":"M. Savadogo, Hamidou Zangré, Sougrenoma Désiré Nana, A. K. Ilboudo, L. D. Dahourou, S. G. Ilboudo, Virginie Simonis, K. A. Sondo, A. Akakpo, Z. Tarnagda, R. Alambedji","doi":"10.14202/ijoh.2021.182-189","DOIUrl":"https://doi.org/10.14202/ijoh.2021.182-189","url":null,"abstract":"Background and Aim: Rabies is a neglected zoonotic disease transmissible to humans and domestic and wild animals through biting, scratching, or licking. This study aimed to analyze the adoption of the One Health approach by the stakeholders involved in rabies control in Burkina Faso. Materials and Methods: The stakeholders involved in rabies control were from the Ministry of Livestock, Ministry of Health, Ministry of the Territory Administration, Ministry of Environment and Wildlife, and Ministry of Higher Education and Research. A structured questionnaire was used in face-to-face interviews to collect data from the stakeholders. The collected data included stakeholders' knowledge of rabies and the One Health approach and their levels of involvement in the multisectoral collaboration. Results: Most participants could not describe rabies correctly (80%), and only 52.9% had heard of the One Health approach. In addition, there was no significant association between knowledge of rabies and participants' characteristics, and the knowledge of the One Health approach was significantly influenced by a participant's affiliation (place of work). Conclusion: The results call for an increase in One Health education for its effective adoption by all the rabies control stakeholders. Additional efforts should focus on continual training of the One Health workforce, from policy-makers to frontline personnel.","PeriodicalId":37300,"journal":{"name":"International Journal of One Health","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66734302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.14202/ijoh.2021.171-181
Md. Sirazul Islam, F. M. Y. Hasib, Chandan Nath, J. Ara, Mong Sing Nu, Md. Abul Fazal, S. Chowdhury
In the 21st century, the world has been plagued by coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a virus of the family Coronaviridae epidemiologically suspected to be linked to a wet market in Wuhan, China. The involvement of wildlife and wet markets with the previous outbreaks simultaneously has been brought into sharp focus. Although scientists are yet to ascertain the host range and zoonotic potential of SARS-CoV-2 rigorously, information about its two ancestors, SARS-CoV and Middle East respiratory syndrome coronavirus (MERS-CoV), is a footprint for research on COVID-19. A 96% genetic similarity with bat coronaviruses and SARS-CoV-2 indicates that the bat might be a potential reservoir of SARS-CoV-2 just like SARS-CoV and MERS-CoV, where civets and dromedary camels are considered the potential intermediate host, respectively. Perceiving the genetic similarity between pangolin coronavirus and SARS-CoV-2, many scientists also have given the scheme that the pangolin might be the intermediate host. The involvement of SARS-CoV-2 with other animals, such as mink, snake, and turtle has also been highlighted in different research articles based on the interaction between the key amino acids of S protein in the receptor-binding domain and angiotensin-converting enzyme II (ACE2). This study highlights the potential animal reservoirs of SARS-CoV-2 and the role of wildlife in the COVID-19 pandemic. Although different causes, such as recurring viral genome recombination, wide genetic assortment, and irksome food habits, have been blamed for this emergence, basic research studies and literature reviews indicate an enormous consortium between humans and animals for the COVID-19 pandemic.
{"title":"Coronavirus disease 2019 and its potential animal reservoirs: A review","authors":"Md. Sirazul Islam, F. M. Y. Hasib, Chandan Nath, J. Ara, Mong Sing Nu, Md. Abul Fazal, S. Chowdhury","doi":"10.14202/ijoh.2021.171-181","DOIUrl":"https://doi.org/10.14202/ijoh.2021.171-181","url":null,"abstract":"In the 21st century, the world has been plagued by coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a virus of the family Coronaviridae epidemiologically suspected to be linked to a wet market in Wuhan, China. The involvement of wildlife and wet markets with the previous outbreaks simultaneously has been brought into sharp focus. Although scientists are yet to ascertain the host range and zoonotic potential of SARS-CoV-2 rigorously, information about its two ancestors, SARS-CoV and Middle East respiratory syndrome coronavirus (MERS-CoV), is a footprint for research on COVID-19. A 96% genetic similarity with bat coronaviruses and SARS-CoV-2 indicates that the bat might be a potential reservoir of SARS-CoV-2 just like SARS-CoV and MERS-CoV, where civets and dromedary camels are considered the potential intermediate host, respectively. Perceiving the genetic similarity between pangolin coronavirus and SARS-CoV-2, many scientists also have given the scheme that the pangolin might be the intermediate host. The involvement of SARS-CoV-2 with other animals, such as mink, snake, and turtle has also been highlighted in different research articles based on the interaction between the key amino acids of S protein in the receptor-binding domain and angiotensin-converting enzyme II (ACE2). This study highlights the potential animal reservoirs of SARS-CoV-2 and the role of wildlife in the COVID-19 pandemic. Although different causes, such as recurring viral genome recombination, wide genetic assortment, and irksome food habits, have been blamed for this emergence, basic research studies and literature reviews indicate an enormous consortium between humans and animals for the COVID-19 pandemic.","PeriodicalId":37300,"journal":{"name":"International Journal of One Health","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66734254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.14202/ijoh.2021.165-170
Masfufatun Masfufatun, Loo Hariyanto Raharjo, Harsono Wiradinata, Putu Oky Ari Tania, Ni’matuzahroh Ni’matuzahroh, A. Baktir
Background and Aim: The virulence and antifungal resistance of Candida albicans are recently known for their ability to form biofilm. This research aimed to construct an in vivo model of C. albicans biofilm in Wistar rats' intestinal mucosa and study their mobilization while in a planktonic and biofilm formation. In this study, there was one treatment group that was treated with three antibiotics, immunosuppressants, and C. albicans. Materials and Methods: This study was divided into control and treatment groups. The data sampling was conducted after C. albicans inoculation. The C. albicans biofilm formation stage was monitored with colony-forming units method calculation every week post-inoculation and then observed by the confocal laser scanning microscope. Results: The planktonic C. albicans overgrowth occurred up to 14 days after inoculation. The formation and maturation of C. albicans biofilm in the intestinal mucosa started in the 28th and 35th-day post-inoculation, respectively. The density of planktonic C. albicans in the stool was dramatically decreased on the 35th day. Before the biofilm formation, the planktonic Candida was carried away by food scraps to be released as a stool. However, there were minuscule or no planktonic Candida observed in the stool during and after biofilm formation. Instead, they were attached to the caecum's mucosa as a biofilm. Conclusion: We have proved that the planktonic C. albicans with its mobile nature were carried into the stool along with the rest of the feed, as we observed a lot of C. albicans cells found in the stool. Meanwhile, on day 28 after administration of antibiotics and immunosuppressants, no C. albicans was found in the stool samples, and at the same time, we observed C. albicans cells and their matrix attached to the intestinal mucosa as a biofilm.
{"title":"New phenomena for clinicians, model of Candida albicans mobilization before and after biofilm formation in the intestinal mucosa of Wistar rats (Rattus norvegicus)","authors":"Masfufatun Masfufatun, Loo Hariyanto Raharjo, Harsono Wiradinata, Putu Oky Ari Tania, Ni’matuzahroh Ni’matuzahroh, A. Baktir","doi":"10.14202/ijoh.2021.165-170","DOIUrl":"https://doi.org/10.14202/ijoh.2021.165-170","url":null,"abstract":"Background and Aim: The virulence and antifungal resistance of Candida albicans are recently known for their ability to form biofilm. This research aimed to construct an in vivo model of C. albicans biofilm in Wistar rats' intestinal mucosa and study their mobilization while in a planktonic and biofilm formation. In this study, there was one treatment group that was treated with three antibiotics, immunosuppressants, and C. albicans. Materials and Methods: This study was divided into control and treatment groups. The data sampling was conducted after C. albicans inoculation. The C. albicans biofilm formation stage was monitored with colony-forming units method calculation every week post-inoculation and then observed by the confocal laser scanning microscope. Results: The planktonic C. albicans overgrowth occurred up to 14 days after inoculation. The formation and maturation of C. albicans biofilm in the intestinal mucosa started in the 28th and 35th-day post-inoculation, respectively. The density of planktonic C. albicans in the stool was dramatically decreased on the 35th day. Before the biofilm formation, the planktonic Candida was carried away by food scraps to be released as a stool. However, there were minuscule or no planktonic Candida observed in the stool during and after biofilm formation. Instead, they were attached to the caecum's mucosa as a biofilm. Conclusion: We have proved that the planktonic C. albicans with its mobile nature were carried into the stool along with the rest of the feed, as we observed a lot of C. albicans cells found in the stool. Meanwhile, on day 28 after administration of antibiotics and immunosuppressants, no C. albicans was found in the stool samples, and at the same time, we observed C. albicans cells and their matrix attached to the intestinal mucosa as a biofilm.","PeriodicalId":37300,"journal":{"name":"International Journal of One Health","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66734240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.14202/ijoh.2021.190-195
Pushkar Pal, A. Yawongsa, R. Bhatta, H. Shimoda, T. Rukkwamsuk
Background and Aim: Animal rabies is endemic in Nepal, and it occurs in two forms. Although governmental and non-governmental agencies are working toward the control of rabies by mass dog vaccination and stray dog population management, there is still massive number of rabies incidence reported to the reference veterinary laboratory, Nepal. Therefore, this study aimed to assess animal species, temporal, regional, and agro-ecological distribution patterns of animal rabies in Nepal from 2005 to 2017. Materials and Methods: The epidemiological data on animal rabies from the period of 2005 to 2017 were obtained from the Central Veterinary Laboratory, Tripureshwor, Kathmandu, Nepal. The laboratory-confirmed rabies cases were analyzed according to animal species, temporal, regional (developmental zones), and agro-ecological distributions. In addition, descriptive statistics were used to evaluate the distribution patterns of rabies. Results: From 2005 to 2017, a total of 2771 suspected rabies cases in animals were reported to The Central Veterinary Hospital, Kathmandu. Of which, 1302 were found laboratory-confirmed cases. The rabies cases were most commonly reported and confirmed in dogs followed by other domestic animals. The high occurrences were recorded between 2005 and 2007. However, the incidence was increased during 2016 and 2017. The highest number of rabies cases was recorded in the eastern development zone, and the least number in the central zone at regional level. Likewise, it was highest in the Terai (plain) region and lowest in mountainous areas at agro-ecological zones. The findings also revealed that the occurrences of rabies significantly differed among seasons. Conclusion: Rabies is present in Nepal throughout the year and all seasons with seasonal variation. Among the animal species, dogs are the primary animals affected with rabies followed by cattle and other domestic animals. At the regional level, eastern development zone had the highest incidence and Central development zone recorded the least. Similarly, the Terai region had the highest incidence rates, and the least overall prevalence rate was observed in mountainous regions among agro-ecological zones. Therefore, the government should implement the strict enforcement of mass dog vaccination and dog population management through one health approach to control rabies incidence in the country.
{"title":"Animal rabies epidemiology in Nepal from 2005 to 2017","authors":"Pushkar Pal, A. Yawongsa, R. Bhatta, H. Shimoda, T. Rukkwamsuk","doi":"10.14202/ijoh.2021.190-195","DOIUrl":"https://doi.org/10.14202/ijoh.2021.190-195","url":null,"abstract":"Background and Aim: Animal rabies is endemic in Nepal, and it occurs in two forms. Although governmental and non-governmental agencies are working toward the control of rabies by mass dog vaccination and stray dog population management, there is still massive number of rabies incidence reported to the reference veterinary laboratory, Nepal. Therefore, this study aimed to assess animal species, temporal, regional, and agro-ecological distribution patterns of animal rabies in Nepal from 2005 to 2017. Materials and Methods: The epidemiological data on animal rabies from the period of 2005 to 2017 were obtained from the Central Veterinary Laboratory, Tripureshwor, Kathmandu, Nepal. The laboratory-confirmed rabies cases were analyzed according to animal species, temporal, regional (developmental zones), and agro-ecological distributions. In addition, descriptive statistics were used to evaluate the distribution patterns of rabies. Results: From 2005 to 2017, a total of 2771 suspected rabies cases in animals were reported to The Central Veterinary Hospital, Kathmandu. Of which, 1302 were found laboratory-confirmed cases. The rabies cases were most commonly reported and confirmed in dogs followed by other domestic animals. The high occurrences were recorded between 2005 and 2007. However, the incidence was increased during 2016 and 2017. The highest number of rabies cases was recorded in the eastern development zone, and the least number in the central zone at regional level. Likewise, it was highest in the Terai (plain) region and lowest in mountainous areas at agro-ecological zones. The findings also revealed that the occurrences of rabies significantly differed among seasons. Conclusion: Rabies is present in Nepal throughout the year and all seasons with seasonal variation. Among the animal species, dogs are the primary animals affected with rabies followed by cattle and other domestic animals. At the regional level, eastern development zone had the highest incidence and Central development zone recorded the least. Similarly, the Terai region had the highest incidence rates, and the least overall prevalence rate was observed in mountainous regions among agro-ecological zones. Therefore, the government should implement the strict enforcement of mass dog vaccination and dog population management through one health approach to control rabies incidence in the country.","PeriodicalId":37300,"journal":{"name":"International Journal of One Health","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66734312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"January-July","authors":"","doi":"10.14202/ijoh.2021.1","DOIUrl":"https://doi.org/10.14202/ijoh.2021.1","url":null,"abstract":"","PeriodicalId":37300,"journal":{"name":"International Journal of One Health","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66734135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.14202/ijoh.2021.158-164
Ferdausi Ali, Tazriyan Noor Silvy, Tanim Jabid Hossain, M. Uddin, Mohammad Seraj Uddin
Background and Aim: Dissemination of multidrug-resistant (MDR) Salmonella through food chains has serious health implications, with higher rates of morbidity and mortality. Broiler meat remains a major reservoir of Salmonella contamination. The lack of proper hygiene in local broiler operations has, therefore, prompted this research into the assessment of Salmonella contamination in local shops and associated antimicrobial resistance (AMR) phenotypes. Materials and Methods: A total of 55 broiler samples including skin, meat, and swab samples from chopping and dressing sites were included in the study. The samples were collected from broiler shops in Hathazari, Bangladesh, and screened for the presence of Salmonella strains using culture-based methods. The isolates were biochemically characterized and further tested for AMR to eight common antibiotics using the disk diffusion technique. Results: Salmonella contaminations were identified in 29% (16/55) of the broiler samples. Swab samples collected from the chopping sites appeared to be contaminated in higher proportions (33%) than those collected from the dressing areas (25%). On the other hand, the skin samples (50%) were detected with a higher percentage of contamination than the meat samples (25%). All Salmonella isolates showed resistance toward at least one of the eight antibiotics used. Although none of the isolates was resistant to all antibiotics, 18.75% showed resistance to a maximum of seven antibiotics. Resistance to nalidixic acid was most prevalent (87.5%), followed by sulfamethoxazole-trimethoprim (81.25%), erythromycin (81.25%), tetracycline (75%), streptomycin (56.25%), ampicillin-clavulanic acid (50%), chloramphenicol (43.75%), and cefotaxime (18.75%). The resistance patterns of the isolates were found to be highly diverse. The most frequently observed pattern was the following: Ampicillin-clavulanic acid-sulfamethoxazole-trimethoprim-nalidixic acid-tetracycline-chloramphenicol-streptomycin-erythromycin. Conclusion: The relatively high prevalence of MDR strains in the samples underlies an urgent need for surveillance and control measures concerning hygiene and antibiotic use in local broiler operations.
{"title":"Prevalence and antimicrobial resistance phenotypes of Salmonella species recovered at various stages of broiler operations in Hathazari, Bangladesh","authors":"Ferdausi Ali, Tazriyan Noor Silvy, Tanim Jabid Hossain, M. Uddin, Mohammad Seraj Uddin","doi":"10.14202/ijoh.2021.158-164","DOIUrl":"https://doi.org/10.14202/ijoh.2021.158-164","url":null,"abstract":"Background and Aim: Dissemination of multidrug-resistant (MDR) Salmonella through food chains has serious health implications, with higher rates of morbidity and mortality. Broiler meat remains a major reservoir of Salmonella contamination. The lack of proper hygiene in local broiler operations has, therefore, prompted this research into the assessment of Salmonella contamination in local shops and associated antimicrobial resistance (AMR) phenotypes. Materials and Methods: A total of 55 broiler samples including skin, meat, and swab samples from chopping and dressing sites were included in the study. The samples were collected from broiler shops in Hathazari, Bangladesh, and screened for the presence of Salmonella strains using culture-based methods. The isolates were biochemically characterized and further tested for AMR to eight common antibiotics using the disk diffusion technique. Results: Salmonella contaminations were identified in 29% (16/55) of the broiler samples. Swab samples collected from the chopping sites appeared to be contaminated in higher proportions (33%) than those collected from the dressing areas (25%). On the other hand, the skin samples (50%) were detected with a higher percentage of contamination than the meat samples (25%). All Salmonella isolates showed resistance toward at least one of the eight antibiotics used. Although none of the isolates was resistant to all antibiotics, 18.75% showed resistance to a maximum of seven antibiotics. Resistance to nalidixic acid was most prevalent (87.5%), followed by sulfamethoxazole-trimethoprim (81.25%), erythromycin (81.25%), tetracycline (75%), streptomycin (56.25%), ampicillin-clavulanic acid (50%), chloramphenicol (43.75%), and cefotaxime (18.75%). The resistance patterns of the isolates were found to be highly diverse. The most frequently observed pattern was the following: Ampicillin-clavulanic acid-sulfamethoxazole-trimethoprim-nalidixic acid-tetracycline-chloramphenicol-streptomycin-erythromycin. Conclusion: The relatively high prevalence of MDR strains in the samples underlies an urgent need for surveillance and control measures concerning hygiene and antibiotic use in local broiler operations.","PeriodicalId":37300,"journal":{"name":"International Journal of One Health","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66734194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.14202/ijoh.2021.196-203
F. Ekawasti, U. Cahyaningsih, N. Dharmayanti, S. Sa’diah, D. Subekti, Z. Azmi, M. I. Desem
Background and Aim: Toxoplasma gondii is a unicellular coccidian parasite distributed globally and is an important zoonotic pathogen. Approximately 30% of the human population worldwide is chronically infected with T. gondii. The pathogenicity of this species depends on the type originating from the clonal population. Techniques for more accurately determining the type of T. gondii have recently been developed using genetic markers. Specifically, T. gondii has been typed using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). This study aimed to identify sets of PCR-RFLP markers that have high power to discriminate genotyping of T. gondii and are easy to use and are easy to use. The objective of this study was to characterize virulent strain isolates of T. gondii by PCR-RFLP using 10 markers with DdeI. Materials and Methods: T. gondii tachyzoites (RH virulent strain) were derived from culture cells at the Indonesian Research Center for Veterinary Sciences. Genotyping was performed on T. gondii DNA extracted from cell cultured tachyzoites using 10 genetic markers of PCR-RFLP, namely, B1#1, B1#2, B1#3, SAG1#1, SAG1#2, P30, BAG1, ROP1, GRA1, and GRA7, with digestion using the restriction enzyme DdeI. Results: The 10 genes were amplified by PCR. Among them, three genetic markers, B1#3, ROP1, and GRA1, were genotyped by the PCR-RFLP using restriction enzyme DdeI. Overall, the findings showed that the specific RFLP profile of digestion of gene regions by DdeI could be used as a specific marker for the virulent biotype causative of toxoplasmosis. In addition, virulent strains of T. gondii can be easily detected by these markers. Conclusion: Three pairs of primers (B1#3, ROP1, and GRA1) with DdeI have proven useful for the diagnosis of acute toxoplasmosis (virulent strain biotype I). This proposed method is relatively simple, rapid, cheap, and can be performed in most laboratories, providing a practical approach for the routine analysis of T. gondii strains.
{"title":"Restriction fragment length polymorphism analysis of genes of virulent strain isolate of Toxoplasma gondii using enzyme DdeI","authors":"F. Ekawasti, U. Cahyaningsih, N. Dharmayanti, S. Sa’diah, D. Subekti, Z. Azmi, M. I. Desem","doi":"10.14202/ijoh.2021.196-203","DOIUrl":"https://doi.org/10.14202/ijoh.2021.196-203","url":null,"abstract":"Background and Aim: Toxoplasma gondii is a unicellular coccidian parasite distributed globally and is an important zoonotic pathogen. Approximately 30% of the human population worldwide is chronically infected with T. gondii. The pathogenicity of this species depends on the type originating from the clonal population. Techniques for more accurately determining the type of T. gondii have recently been developed using genetic markers. Specifically, T. gondii has been typed using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). This study aimed to identify sets of PCR-RFLP markers that have high power to discriminate genotyping of T. gondii and are easy to use and are easy to use. The objective of this study was to characterize virulent strain isolates of T. gondii by PCR-RFLP using 10 markers with DdeI. Materials and Methods: T. gondii tachyzoites (RH virulent strain) were derived from culture cells at the Indonesian Research Center for Veterinary Sciences. Genotyping was performed on T. gondii DNA extracted from cell cultured tachyzoites using 10 genetic markers of PCR-RFLP, namely, B1#1, B1#2, B1#3, SAG1#1, SAG1#2, P30, BAG1, ROP1, GRA1, and GRA7, with digestion using the restriction enzyme DdeI. Results: The 10 genes were amplified by PCR. Among them, three genetic markers, B1#3, ROP1, and GRA1, were genotyped by the PCR-RFLP using restriction enzyme DdeI. Overall, the findings showed that the specific RFLP profile of digestion of gene regions by DdeI could be used as a specific marker for the virulent biotype causative of toxoplasmosis. In addition, virulent strains of T. gondii can be easily detected by these markers. Conclusion: Three pairs of primers (B1#3, ROP1, and GRA1) with DdeI have proven useful for the diagnosis of acute toxoplasmosis (virulent strain biotype I). This proposed method is relatively simple, rapid, cheap, and can be performed in most laboratories, providing a practical approach for the routine analysis of T. gondii strains.","PeriodicalId":37300,"journal":{"name":"International Journal of One Health","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66734358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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