Susceptibility to COVID-19 (SARS-CoV-2) in animals is influenced by age. Older animals exhibit a stronger immune response, whereas younger animals, such as kittens, are more vulnerable to severe illness and potentially fatal outcomes upon infection.

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Animal-to-animal transmission of COVID-19 (SARS-CoV-2) can occur, especially among household pets of the same species. Susceptibility and transmission rates vary significantly by species. While some animals, like cats, are highly susceptible and easily transmit the virus to one another, other animals, such as dogs, exhibit strong resistance and do not readily transmit the infection. Furthermore, cross-species transmission (e.g., between cats and dogs) has a very low likelihood.

Animal-to-Animal Transmission of COVID-19

1) Harbin Veterinary Research Institute - https://www.discovermagazine.com/health/can-your-pets-get-coronavirus-and-can-you-catch-it-from-them



References of Animal-to-Animal Transmission

Cats are highly susceptible to COVID-19 (SARS-CoV-2) and can readily transmit the virus to other cats. Experimental studies have shown that healthy cats co-housed with infected cats can contract the virus within a week, demonstrating that the virus replicates in felines and transmits through respiratory droplets.

Feline-to-Feline Transmission of COVID-19

Dogs exhibit high resistance to COVID-19 (SARS-CoV-2) and are unlikely to transmit the virus to other dogs. Experimental studies have shown that dogs inoculated with the virus do not transmit the infection to uninfected dogs co-housed with them.

Canine-to-Canine Transmission of COVID-19

The likelihood of cross-species transmission of COVID-19 (SARS-CoV-2) among different household pets is very low. Experimental evidence indicates that the virus is not transmitted between infected dogs and uninfected cats, or between infected cats and uninfected dogs.

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