Epidemiological study of pestiviruses in South American camelids in Switzerland

Mudry, M.; Meylan, M.; Regula, G.; Steiner, A.; Zanoni, R.; Zanolari, P. (2010). Epidemiological study of pestiviruses in South American camelids in Switzerland. Journal of veterinary internal medicine, 24(5), pp. 1218-1223. Oxford: Wiley-Blackwell 10.1111/j.1939-1676.2010.0577.x

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BACKGROUND: In the context of the ongoing eradication campaign for bovine viral diarrhea virus (BVDV) in cattle in Switzerland, the role of South American camelids (SAC) as a possible virus reservoir needed to be evaluated. OBJECTIVE: To assess and characterize the prevalence of pestivirus infections in SAC in Switzerland. ANIMALS: Serum samples collected from 348 animals (40 herds) in 2008 and from 248 animals (39 herds) in 2000 were examined for antibodies against pestiviruses and for the presence of BVDV viral RNA. METHODS: Cross-sectional study using stratified, representative herd sampling. An indirect BVDV-ELISA was used to analyze serum samples for pestivirus antibodies, and positive samples underwent a serum neutralization test (SNT). Real-time RT-PCR to detect pestiviral RNA was carried out in all animals from herds with at least 1 seropositive animal. RESULTS: In 2008, the overall prevalence of animals positive for antibodies (ELISA) and pestiviral RNA or was 5.75 and 0%, respectively. In 2000, the corresponding prevalences were 3.63 and 0%, respectively. The seroprevalences (SNT) for BVDV, border disease virus or undetermined pestiviruses were estimated to be 0, 1.73, and 4.02% in 2008, and 0.40, 1.21, and 2.02% in 2000, respectively. CONCLUSIONS AND CLINICAL IMPORTANCE: At the present time, SAC appear to represent a negligible risk of re-infection for the BVDV eradication program in cattle in Switzerland.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) > Clinic for Ruminants
05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH) > Veterinary Public Health Institute
05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) > Institute of Virology and Immunology

UniBE Contributor:

Mudry, Marie; Meylan, Mireille; Schüpbach, Gertraud; Steiner, Adrian and Zanolari, Patrik

Subjects:

600 Technology > 630 Agriculture

ISSN:

0891-6640

Publisher:

Wiley-Blackwell

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:36

Last Modified:

08 May 2014 09:00

Publisher DOI:

10.1111/j.1939-1676.2010.0577.x

PubMed ID:

20726946

Web of Science ID:

000281550900029

URI:

https://boris.unibe.ch/id/eprint/14406 (FactScience: 221381)

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