Prevalence of antibodies against bluetongue virus serotype 8 in bulk-tank milk samples from dairy cattle herds located in risk areas for bluetongue virus transmission after a vaccination programme in Switzerland.

Büchi, Martina Corinne; Abril Gaona, Carlos; Vögtlin, Andrea; Schwermer, Heinzpeter (2014). Prevalence of antibodies against bluetongue virus serotype 8 in bulk-tank milk samples from dairy cattle herds located in risk areas for bluetongue virus transmission after a vaccination programme in Switzerland. Berliner und Münchener tierärztliche Wochenschrift, 127(3-4), pp. 158-162. Schlütersche

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Switzerland had been affected by the bluetongue virus serotype 8 (BTV-8) epidemic in Europe in the years 2007 to 2009. After three years of mandatory vaccination and comprehensive surveillance, Switzerland showed to be free of BTV-8 in 2012. In the future Elisa testing of bulk-tank milk (BTM) samples as a very sensitive and cost-effective method should be used for the surveillance of all serotypes of BTV. To determine the prevalence of seropositive herds, BTM from 240 cattle herds was sampled in July 2012. The results showed an apparent seroprevalence of 98.7% in the investigated dairy herds. Most plausible, the high prevalence was caused by the vaccination campaigns rather than by infections with BTV-8. In the outbreak the cumulative number of BTV-8 cases in Switzerland had been 75.Thus it is very likely that the used inactivated vaccines induced long-term antibody titres. Due to the high seroprevalence, investigating for BT-antibodies cannot be used for early recognition of a new introduction of BTV at the moment. Nonetheless, testing of BTM samples is appropriate for an annual evaluation of the seroprevalence and especially as an instrument for early recognition for incursions as soon as the antibody prevalence declines.To determine this decline the BTM testing scheme should be conducted each year as described in this work.

Item Type:	Journal Article (Original Article)
Division/Institute:	05 Veterinary Medicine > Research Foci > Host-Pathogen Interaction 05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) > Institute of Virology and Immunology 05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH) > Veterinary Pharmacology and Toxicology 05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) 05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH)
UniBE Contributor:	Büchi, Martina Corinne, Abril Gaona, Carlos, Vögtlin, Andrea
Subjects:	600 Technology > 630 Agriculture
ISSN:	0005-9366
Publisher:	Schlütersche
Language:	English
Submitter:	Barbara Gautschi-Steffen
Date Deposited:	23 Apr 2015 15:48
Last Modified:	05 Dec 2022 14:45
PubMed ID:	24693662
URI:	https://boris.unibe.ch/id/eprint/66666