Even as coronavirus vaccination to humans has just started globally, scientists say that pets may also need to be inoculated against Covid-19 to curb the spread of the virus.
According to a report in Independent experts from the University of East Anglia (UEA), Norwich-based research facility the Earlham Institute and University of Minnesota have said that coronavirus can infect a wide range of species including cats, dogs, mink and other domesticated species.
In an editorial for the journal Virulence, they warned that continued evolution of the virus in animals followed by transmission to humans “poses a significant long-term risk to public health”.
“It is not unthinkable that vaccination of some domesticated animal species might… be necessary to curb the spread of the infection,” the report quoted their journal.
While dogs and cats can contract coronavirus, there are no known cases in which there has been spillback to humans, one of the editorial’s authors said.
“It makes sense to develop vaccines for pets, for domestic animals, just as a precaution to reduce this risk,” said Cock van Oosterhout, professor of evolutionary genetics at UEA.
“What we need to be as a human society, we really need to be prepared for any eventuality when it comes to Covid. I think the best way to do this is indeed consider development of vaccines for animals as well. Interestingly the Russians have already started to develop a vaccine for pets, which there’s very little information about,” he added.
Kevin Tyler, editor-in-chief of Virulence, said: “Cats are asymptomatic but they are infected by it and they can infect humans with it.
“The risk is that, as long as there are these reservoirs, that it starts to pass as it did in the mink from animal to animal and then starts to evolve animal-specific strains, but then they spill back into the human population and you end up essentially with a new virus which is related which causes the whole thing all over again.”
He added: “It’s not an obvious risk yet.”
Prof van Oosterhout and Prof Tyler wrote the editorial along with the director of the Earlham Institute Neil Hall and Hinh Ly of the University of Minnesota, reported Independent.
In their editorial, the scientists wrote: “Continued virus evolution in reservoir animal hosts, followed by spillback events into susceptible human hosts, poses a significant long-term risk to public health.
“SARS-CoV-2 can infect a wide range of host species, including cats, dogs, mink and other wild and domesticated species and, hence, the vaccination of domesticated animals might be required to halt further virus evolution and spillback events.
“Whilst the vaccination campaigns against SARS-CoV-2/ Covid-19 are being rolled out worldwide, new virus variants are likely to continue to evolve that have the potential to sweep through the human population.”
They said that more transmissible virus strains, such as the UK variant, require more people to be vaccinated to keep coronavirus under control.