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J Am Vet Med Assoc. 1996 Feb 15;208(4):542-6.

Risk factors associated with parvovirus enteritis in dogs: 283 cases (1982-1991).

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Department of Veterinary Internal Medicine, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada.



To determine breed, sex, and seasonal predisposition for development of canine parvovirus (CPV) enteritis in dogs.


Retrospective case-control study.


Medical records from 283 dogs with confirmed CPV enteritis and from 834 age-matched control dogs that were healthy or had been admitted with nonenteric illness.


Effects of season, breed, sex, and neutering on the risk of developing CPV enteritis were examined by calculation of unadjusted odds ratios and performance of multivariate analysis. Stratified and contingency table analyses were performed to identify interactions and confounding among variables.


Rottweilers, American Pit Bull Terriers, Doberman Pinschers, and German Shepherd Dogs were at increased risk and Toy Poodles and Cocker Spaniels were at decreased risk for developing CPV enteritis, compared with that for mixed-breed dogs. For dogs more than 6 months old, sexually intact males were twice as likely as intact females to develop CPV enteritis. Dogs were 3 times more likely to be admitted with CPV enteritis in July, August, and September, compared with the rest of the year. Dogs were 12.7 times more likely to be admitted with CPV enteritis if they had not been currently vaccinated.


Lack of vaccination is a significant risk factor for development of CPV enteritis. Seasonal, sex, and breed predispositions for the development of CPV enteritis also exist.

[Indexed for MEDLINE]

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