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The role of pets in SARS-CoV-2 transmission: an exploratory analysis
Ana Izabel Passarella Teixeira1, Raíssa Nogueira de Brito2,3, Carolina Carvalho Gontijo2,4,5
1Núcleo de Medicina Tropical, Universidade de Brasília - Campus Universitário Darcy Ribeiro, Brasília, DF, 70910-900, Brazil. ana.teixeira@unb.br.
Purpose:
There is evidence that humans can transmit SARS-CoV-2 to cats and dogs. However, there is no evidence that they can transmit it back to humans or play any role in SARS-CoV-2 transmission. Here, we present an exploratory analysis on that matter.
Methods:
We conducted a case-control study with participants with flu-like symptoms seeking care at a primary healthcare unit to be tested for COVID-19. They were asked if they owned pet cats and/or dogs in their residences, and this variable was evaluated as exposure.
Results:
The odds ratio of "having dogs and/or cats in the residence" was 1.29 (95% CI 1.08-1.54) of "having only dogs and no cats" was 1.26 (1.05-1.52), and "no dogs and only cats" was 1.29 (0.95-1.75).
Conclusion:
Having a cat/dog in the house can affect the risk of infection by SARS-CoV-2.
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