Seroepizootyczne badania w kierunku parwowirusowej choroby psów

The purpose of the work was to assess the rate of ca­nine parvovirus infection in the Lublin region on the basis of HI antibodies. The authors evaluated the level of HI antibodies in sera taken from 105 dogs clinically healthy, aged from 10 weeks to 10 years, both sex, diffe­rent breed and mongrels. It was found that in all the sera there were present HI antibodies in the titres from 16 to 16 384. It is worth emphasising that only 23.8% of the dogs had been vaccinated before against CPV-2 and the titer of HI antibodies was not associated with the time of vaccination. This fact and a common presence of the antibodies indicate that the animals were exposed to the infection with CPV-2 naturally and many of them in despite of infection did not show any clinical signs of the disease. Therefore, one might assume that some wild parvovirus strains were avirulent and/or young dogs due to maternal specific antibodies were resistant to infection.