Health
People testing negative for Covid-19 despite exposure may have ‘immune memory’ – The Guardian
Study says some individuals clear virus rapidly due to a strong immune response from existing T-cells, meaning tests record negative…

CoronavirusStudy says some individuals clear virus rapidly due to a strong immune response from existing T-cells, meaning tests record negative result
We all know that person who, despite their entire household catching Covid-19, has never tested positive…
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