Trade and neighbourhood risks keep bovine virus infection endemic in a territory

The large-scale spread of endemic, persistently circulating pathogens is complex. It depends on what happens in each animal population and on the contacts between these populations. In the case of Bovine Viral Diarrhoea Virus (BVD), there are two complementary routes of transmission: neighbourhood relations and the commercial movement of cattle between herds. Despite often rapid extinctions in infected herds, the intense circulation of the virus between herds induces long-term persistence on a wider territorial scale, and shows the need for coordinated control taking into account territorial specificities.

Bibliography  :

Qi, L., Beaunée, G., Arnoux, S., Dutta, B. L., Joly, A., Vergu, E., and Ezanno, P. 2019. Neighbourhood contacts and trade movements drive the regional spread of bovine viral diarrhoea virus (BVDV). Veterinary Research, 50(1):30 DOI: 10.1186/s13567-019-0647-x.