[Monitoring of infectious diseases among wild boars].

Sixty-seven serum samples and 43 pathological material samples from wild boars, taken in 5 regions of Russia and in the Kharkov Region of the Ukraine in 2002 to 2005 were studied. Wild boars in some regions of Russia were shown to be carriers of Aujeszky's disease virus, porcine parvovirus, porcine circovirus type 2, lymphotropic herpesvirus-1, porcine cytomegalovirus, Mycoplasma hyopneumoniae and Pasteurella multocida. The classical swine fever (CSF) virus genome was detected by polymerase chain reaction in the samples from 10 wild boars from 2 Russian regions (the Tver and Moscow Regions).

[Immunological and biological characteristics of viral isolates of porcine reproductive and respiratory syndrome].

Described in the paper are study results of some immunobiological properties of 5 field isolates of the porcine reproductive and respiratory syndrome virus (PRRSV), obtained in Russia and Byelorussia in 1998-2001. According to the research work, the PRRSV isolates with different immunobiological properties have been circulating in the territories of Russia and Byelorussia. Three of the 4 examined virus isolates were found to be pathogenic and 1 avirulent to pigs.