The pandemic has triggered changes in influenza, RSV, and the common cold, and experts said they can't yet fully explain why.
In explaining the spread of viral respiratory diseases, infectious disease doctors consider two things.
“Immunity to these common cold viruses gained through natural infection is considered to last around 8 or 9 months or so,” he says. “Each winter, when we are exposed to the new circulating variants of these viruses, our immunity receives a natural boost.” “The colds themselves are probably not different to those we got pre-pandemic,” says Ian Mackay, PhD, a virologist at The University of Queensland, Brisbane, in Australia. “But there might be more of them. So I doubt they are ‘super colds’ as much as they are ‘super-perfect circumstances.’”
of immunity from mothers to infants, some researchers say, making those infants more vulnerable than usual.Another thing that may be driving the different behavior of viruses is that the SARS-CoV-2 virus could somehow be interacting with other respiratory viruses, Schaffner says. “And if so, what sort of interactions?”
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