Analysis of risk factors associated with canine parvovirus infection in vaccinated dogs

Canine Parvovirus-2 (CPV-2) causes hemorrhagic gastroenteritis in dogs. It spreads rapidly in dog population. Three major antigenic variants distributed among the dog population worldwide at present are 2a, 2b and 2c. There are several reports implicating CPV for the causation of disease both in vaccinated and unvaccinated canine population from different parts of the country. In the present study, various risk factors implicated in the occurrence of disease particularly in vaccinated dogs were studied. Various risk factors viz. season, age, sex, breed of dog, financial status of owner, vaccination status and severity of clinical signs were analyzed in the dogs positive for CPV by Nested PCR using Fisher’s exact test. Upon analysis it was concluded from the study that the risk factors included in the study were insignificantly different for the occurrence of CPV infection in vaccinated dogs and hence could not be attributed to the cause of vaccination failure in dogs for CPV.