Division 2

Detection of classical swine fever may be particularly difficult in breeding pig holdings, as the course of the infection may be very mild and may be confused with many other pathological conditions. Reduced fertility and abortions can be caused by classical swine fever virus as well as parvovirus infection, PRRS, leptospirosis, and Aujeszkys disease. Material aborted due to classical swine fever infection cannot be distinguished pathologically from abortions due to other disease agents.

In case of suspicion of an infectious disease of the reproductive tract, investigation for classical swine fever must be immediately carried out whenever the holding in question can be considered at risk (e.g. due to location of the holding in an area where classical swine fever occurs in feral pigs), and in any case as soon as more common infectious diseases of the reproductive tract have been excluded.