Risk Factors for SARS-CoV-2 Infection and Illness in Cats and Dogs1
, Joyce Rousseau, David Marom, Jennifer MacNicol, Linda Jacobson, Stephanie Sparling, Natalie Prystajecky, Erin Fraser, and J. Scott Weese
Author affiliations: Ontario Veterinary College, Guelph, Ontario, Canada (D. Bienzle, J. Rousseau, D. Marom, J. MacNicol, J.S. Weese); Toronto Humane Society, Toronto, Ontario, Canada (L. Jacobson); Toronto Animal Services, Toronto (S. Sparling); BC Centre for Disease Control Public Health Laboratory, Vancouver, British Columbia, Canada (N. Prystajecky); University of British Columbia, Vancouver (N. Prystajecky); Communicable Disease and Immunization Service, BC Centre for Disease Control, Vancouver (E. Fraser); University of British Columbia School of Population and Public Health, Vancouver (E. Fraser)
Figure 1. Seropositivity for SARS-CoV-2 in cats brought for care to a low-cost spay/neuter clinic during January – June 2021, Ontario, Canada. A) Test results for 221 cats shown by month. B) Positivity rate per month. The points indicate the proportion of positive test results among all test results over time. Blue line indicates the smoothed rate of seropositivity. The association between month and the change in seropositivity was significant (p<0.0001).
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