Division Project 1.6

To identify clinical symptoms following SBV infection as well as potential risk factors for introduction and spread of SBV in dairy cattle herds and sheep.

Outcome:

1. 1..

   Analysis of the impact of the SBV infection on health and productivity of dairy cattle and their offspring, the possibility of vertical transmission. Determination of how long infected calves stay viraemic. Guidance for potential control measures (e.g. grazing management).

2. 2..

   Description and quantification of clinical signs in adult infected sheep after a primary infection with SBV. Determination of mortality rates in newborn lambs, relation between seroprevalence and clinical manifestations in herds. Identification of potential risk factors for introduction and spread of SBV in sheep flocks. The study will obtain baseline information on impact of SBV on sheep health and production, and risk factors associated with introduction, spread and impact of SBV.

   • Member State involved: the Netherlands