Coronavirus: UK scientists call for more research into Covid-19 link between pets and humans

More research into domesticated animals that are susceptible to the coronavirus, including pet cats and dogs, is needed to assess the likelihood they may re-infect humans who have worked hard to gain control over the disease, a team of British scientists have said.

Professors Joanna Santini and Sarah Edwards, researchers from the University College London, wrote a comment paper calling for further research into the possible transmission cycle of Covid-19 from humans to animals and vice versa.

The paper, published in The Lancet Microbe, referred to the recent discovery of the virus in mink farms in the Netherlands, where outbreaks of Covid-19 transmitted from humans to the mink resulted in the culling of tens of thousands of the animals.

The virus spread like wildfire through 12 of around 130 mink farms in the country, reported the Science journal. Feral cats that roamed the farms were also found to to be infected with the coronavirus.

Experimental evidence shows that SARS-Cov-2, the virus that causes Covid-19, can infect cats, dogs, monkeys, ferrets, and hamsters, said the authors, who added that attention should be paid to rabbits, sheep, goats, cattle and horses as computational studies suggest the potential for infection.

Prof Santini told the PA news agency: “We need to develop surveillance strategies to ensure we don’t get taken by surprise by a large outbreak in animals, which could pose a threat not just to animal health but to human health as well.

“Virus transmission in animal populations could become irreversible if left unchecked, and may threaten the success of existing public health measures if people continue to catch the virus from an infected population of animals.”

The comment comes after a study in the New England Journal of Medicine, published last month, said cats can readily become infected with SARS-CoV-2 and may be able to pass the virus to other cats.

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