Sero-prevalence of specific Leptospira serovars in fattening pigs from 5 provinces in Vietnam
Background Leptospirosis is a zoonotic bacterial disease with a worldwide distribution. In Vietnam, leptospirosis is considered endemic. In pigs, leptospirosis can result in reproductive problems (such as abortion and infertility) which lead to economic loss. In addition, transmission to people pres...
| Autores principales: | , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
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Springer
2017
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/81105 |
| _version_ | 1855527722974969856 |
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| author | Hu Suk Lee Nguyen Viet Khong Huyen Nguyen Xuan Vuong Bui Nghia Hung Nguyen-Viet Grace, Delia |
| author_browse | Grace, Delia Hu Suk Lee Hung Nguyen-Viet Huyen Nguyen Xuan Nguyen Viet Khong Vuong Bui Nghia |
| author_facet | Hu Suk Lee Nguyen Viet Khong Huyen Nguyen Xuan Vuong Bui Nghia Hung Nguyen-Viet Grace, Delia |
| author_sort | Hu Suk Lee |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Background Leptospirosis is a zoonotic bacterial disease with a worldwide distribution. In Vietnam, leptospirosis is considered endemic. In pigs, leptospirosis can result in reproductive problems (such as abortion and infertility) which lead to economic loss. In addition, transmission to people presents a public health risk. In Vietnam, few national studies have been conducted on sero-prevalence of leptospirosis in pigs. The main objective of this study was to evaluate the sero-prevalence and incidence of presumptive infective leptospira serovars in fattening pigs from 5 provinces in Vietnam. Results Blood samples from fattening pigs were randomly collected at slaughterhouses. We collected 1959 sera samples from 5 provinces (Son La, Hanoi, Nghe An, Dak Lak and An Giang) between January and early June 2016. The microscopic agglutination test (MAT) was used to identify the serogroups/serovars. Overall, the sero-prevalence was 8.17% (95% CI: 6.99–9.47) and serovar Tarassovi Mitis (2.19%) had the highest prevalence followed by Australis (1.94%), Javanica (1.68%) and Autumnalis (1.17%) using a cutoff (≥ 1:100). The sero-prevalence among female pigs (5.28%, 95% CI: 3.94–6.93) was slightly higher than among male pigs (4.88%, 95% CI: 3.51–6.58), but this difference was not statistically significant. Conclusions Leptospirosis in pigs may be a useful indicator of the human/animal burden in Vietnam and a risk assessment tool. The presence of some of the identified serovars suggests that wildlife may play an important role in the transmission of leptospirosis to domesticated pigs in Vietnam. Therefore, strengthened monitoring and surveillance systems are needed to better understand the epidemiology of the disease and prevent or reduce infection in humans and animals. |
| format | Journal Article |
| id | CGSpace81105 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace811052024-05-01T08:17:48Z Sero-prevalence of specific Leptospira serovars in fattening pigs from 5 provinces in Vietnam Hu Suk Lee Nguyen Viet Khong Huyen Nguyen Xuan Vuong Bui Nghia Hung Nguyen-Viet Grace, Delia animal diseases swine zoonoses Background Leptospirosis is a zoonotic bacterial disease with a worldwide distribution. In Vietnam, leptospirosis is considered endemic. In pigs, leptospirosis can result in reproductive problems (such as abortion and infertility) which lead to economic loss. In addition, transmission to people presents a public health risk. In Vietnam, few national studies have been conducted on sero-prevalence of leptospirosis in pigs. The main objective of this study was to evaluate the sero-prevalence and incidence of presumptive infective leptospira serovars in fattening pigs from 5 provinces in Vietnam. Results Blood samples from fattening pigs were randomly collected at slaughterhouses. We collected 1959 sera samples from 5 provinces (Son La, Hanoi, Nghe An, Dak Lak and An Giang) between January and early June 2016. The microscopic agglutination test (MAT) was used to identify the serogroups/serovars. Overall, the sero-prevalence was 8.17% (95% CI: 6.99–9.47) and serovar Tarassovi Mitis (2.19%) had the highest prevalence followed by Australis (1.94%), Javanica (1.68%) and Autumnalis (1.17%) using a cutoff (≥ 1:100). The sero-prevalence among female pigs (5.28%, 95% CI: 3.94–6.93) was slightly higher than among male pigs (4.88%, 95% CI: 3.51–6.58), but this difference was not statistically significant. Conclusions Leptospirosis in pigs may be a useful indicator of the human/animal burden in Vietnam and a risk assessment tool. The presence of some of the identified serovars suggests that wildlife may play an important role in the transmission of leptospirosis to domesticated pigs in Vietnam. Therefore, strengthened monitoring and surveillance systems are needed to better understand the epidemiology of the disease and prevent or reduce infection in humans and animals. 2017-12 2017-05-17T08:16:34Z 2017-05-17T08:16:34Z Journal Article https://hdl.handle.net/10568/81105 en Open Access Springer Hu Suk Lee, Nguyen Viet Khong, Huyen Nguyen Xuan, Vuong Bui Nghia, Hung Nguyen-Viet and Grace, D. 2017. Sero-prevalence of specific Leptospira serovars in fattening pigs from 5 provinces in Vietnam. BMC Veterinary Research 13: 125. |
| spellingShingle | animal diseases swine zoonoses Hu Suk Lee Nguyen Viet Khong Huyen Nguyen Xuan Vuong Bui Nghia Hung Nguyen-Viet Grace, Delia Sero-prevalence of specific Leptospira serovars in fattening pigs from 5 provinces in Vietnam |
| title | Sero-prevalence of specific Leptospira serovars in fattening pigs from 5 provinces in Vietnam |
| title_full | Sero-prevalence of specific Leptospira serovars in fattening pigs from 5 provinces in Vietnam |
| title_fullStr | Sero-prevalence of specific Leptospira serovars in fattening pigs from 5 provinces in Vietnam |
| title_full_unstemmed | Sero-prevalence of specific Leptospira serovars in fattening pigs from 5 provinces in Vietnam |
| title_short | Sero-prevalence of specific Leptospira serovars in fattening pigs from 5 provinces in Vietnam |
| title_sort | sero prevalence of specific leptospira serovars in fattening pigs from 5 provinces in vietnam |
| topic | animal diseases swine zoonoses |
| url | https://hdl.handle.net/10568/81105 |
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