• What Delta has changed in the Covid pandemic - and what it hasn't

    1 month ago - By STAT

    In some respects, the Delta variant has changed everything in the Covid-19 pandemic. In others, the same rules still apply.
    Before the variant of SARS-CoV-2 began spreading rapidly in the United States, Covid-19 vaccines were drastically cutting the number of cases. They were preventing people from being infected. And vaccinated people who got infected were unlikely to infect others.
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