Even low doses of SARS-CoV-2 make hamsters sick.
if a human in the household tests positive for the virus and to consult a veterinarian. Swabbing your pet hamster’s mouth could also tell you if it might be infected.
“We don’t think from these results that hamsters play a role in the dynamics of pandemic. It’s just that the virus might ping-pong within the household if an infected person has close contact with a hamster,” says Balkema-Buschmann. The greater danger, says Leo Poon, a virologist at the University of Hong Kong who studied the pet shop cluster, is hamsters in farmed or pet trade settings. “With such a high susceptibility to SARS-CoV-2, an introduction of an infectious hamster to a hamster farm or a batch of hamsters might cause an outbreak in the population,” says Poon. “Even worse, it might be silently spreading.”
The new hamster study also examined two genetic versions of the virus from hamsters that received high and low doses, respectively. Neither contained significant mutations. Whenever a virus passes between species there’s a concern that it might mutate and become more infectious or dangerous , but Poon notes that one would need to see multiple rounds of infection to say anything about the mutation risk in these rodents.
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