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“Immune memory”: some test negative to covid-19 despite having been exposed to the virus – Play Crazy Game

There are people who, despite having contracted covid-19, have never tested positive for the disease. Almost two years after…

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There are people who, despite having contracted covid-19, have never tested positive for the disease.
Almost two years after there was a record of the first case of coronavirus in the world, a group of researchers found an explanation for this phenomenon:…

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