Case reports

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Case reports

Published 20 April 2020 | Updated 17 February 2023

There have been a small number of reports of animals being infected with SARS-CoV-2. To date, all these animals appear to have been infected through contact with infected people. There is no evidence of humans being infected through contact with domestic animals.


There continue to be further case reports of pet animals infected with SARS-CoV-2, in all cases these appear to come from households in which at least one person is infected with COVID-19.

A full list of case reports of confirmed infection of SARS-CoV-2 in animals (Events in animals tab) can be found on the OIE website.

SARS-ANI VIS: a global open access dataset of reported SARS-CoV-2 events in animals.  [Complexity Science Hub, Vienna] [online]. Available from: [Accessed 10 August 2022].

SARS-CoV-2 infection in captive hippos

Vercammen, F. et al. (2023)  SARS-CoV-2 infection in captive hippos (Hippopotamus amphibius), Belgium. Animals, 13 (2), no. 316.

Published 17 February 2023

Variant B.1.1.529 (omicron)

Sánchez-Morales, L. et al. (2022) The Omicron (B.1.1.529) SARS-CoV-2 variant of concern also affects companion animals. Frontiers in Veterinary Science, 9, no. 940710.

Published 15 September 2022

Variant B.1.617.2 (Delta)

Published 17 May 2022

Variant B.1.1.7 (alpha)

Published 1 February 2022

Hamsters Hong kong

Published 1 February 2022


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  • Sila, T et al. (2022) Suspected Cat-to-Human transmission of SARS-CoV-2, Thailand, July-September 2021. Emerging Infectious Diseases, 28 (7), pp.1485-1488.

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  • Fiorito, F. et al. (2022) First description of serological evidence for SARS-CoV-2 in lactating cows. Animals, 12 (11) p. 1459.
  • Wernike, K. et al. (2022) Antibodies against SARS-CoV-2 suggestive of single events of spillover to cattle, Germany. Emerging Infectious Disease, 28 (9), pp. 1916-1918.

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Wildlife and zoo

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