That's also why "worry about the flu" instead was such a wrong reaction in winter of 2020—a novel virus released into a population with no prior immunity is a *huge* threat. With time—vaccination and infection—the nature of that threat changes. (No, doesn't get to zero: changes).
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Adding useful thread by South African scientist. Need another week or two for more confidence, but shaping up so far, as many said, as antibody evasion, with previously infected/vaccinated largely protected from severity subject to age (elderly vulnerable), immunocompetence etc.https://twitter.com/ShabirMadh/status/1469391691035648005 …
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Ha that’s because PCR can’t tell the difference so it was all put in the CV bucket. Hence the quiet sunsetting of PCR this month https://www.cdc.gov/csels/dls/locs/2021/07-21-2021-lab-alert-Changes_CDC_RT-PCR_SARS-CoV-2_Testing_1.html …
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but symptomatic, a huge wave can still be a strain. If a tiny percent of those are severe that can add up quickly if the wave is big enough. Remember it is in *addition* to other seasonal viruses.