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Volume 28, Number 12—December 2022
Research

Household Transmission of SARS-CoV-2 from Humans to Pets, Washington and Idaho, USA

Julianne MeisnerComments to Author , Timothy V. Baszler, Kathryn E. Kuehl, Vickie Ramirez, Anna Baines, Lauren A. Frisbie, Eric T. Lofgren, David M. de Avila, Rebecca M. Wolking, Dan S. Bradway, Hannah R. Wilson, Beth Lipton1, Vance Kawakami, and Peter M. Rabinowitz
Author affiliations: University of Washington, Seattle, Washington, USA (J. Meisner, V. Ramirez, A. Baines, P.M. Rabinowitz); Washington State University, Pullman, Washington, USA (T.V. Baszler, K.E. Kuehl, E.T. Lofgren, D.M. de Avila, R.M. Wolking, D.S. Bradway, H.R. Wilson); Washington State Department of Health, Shoreline, Washington, USA (L.A. Frisbie); Public Health Seattle and King County, Seattle (B. Lipton, V. Kawakami)

Main Article

Table 2

Regression model results for study of household transmission of SARS-CoV-2 from humans to pets, Washington and Idaho, USA*

Characteristic
 Illness consistent with SARS-CoV-2, POR (95% CI)†
 ELISA ratio, expβ (95% CI)†
Exposure
Indoor only
 1.63 (0.77‒3.45)
 1.07 (0.61‒1.88)
House type‡ 0.52 (0.2‒1.34) 1.79 (1.02‒3.11) for dogs, 0.51 (0.25‒1.03) for cats
House square footage
 1 (1‒1)
 1 (1‒1)
Share bowls§ 1.29 (0.39‒4.25) 1.78 (1.07‒4.49)
Bedsharing 1.48 (0.66‒3.33) 1.16 (0.68‒1.95)
Took precautions¶ 0.71 (0.29‒1.75) 0.81 (0.48‒1.37)
No. SARS-CoV-2 infected humans 0.78 (0.54‒1.13) 1.18 (0.85‒1.64)
Illness consistent with SARS-CoV-2 Not examined 1.09 (0.59‒2.01)
Time since first exposure, days# Not examined 1 (1‒1)

*House size was adjusted for house type, but no other models were adjusted for confounders due to overfitting concerns. POR, prevalence odds ratio. †Survey results were available for 119 dogs and 57 cats and serology results available for 81 dogs and 32 cats. ‡House versus apartment or condominium. §Animals and humans use the same bowls. ¶Precautions taken to prevent human-to-animal SARS-CoV-2 transmission after diagnosis: not petting or kissing the animal, staying in a different room, and having someone else feed and walk the animal. #First exposure was defined as 2 days before first positive diagnosis in the household or onset of symptoms, whichever was earlier.

Main Article

1Current affiliation: Washington State Department of Health, Shoreline, Washington, USA.

Page created: October 06, 2022
Page updated: November 21, 2022
Page reviewed: November 21, 2022
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