Why some people who haven’t had Covid-19 might already have some immunity – 7NEWS.com.au

The immune systems of some people who have not been exposed to the novel coronavirus could have some familiarity with the pathogen – possibly helping to reduce the severity of illness if that person does get Covid-19, a new study suggests.
The study, published in the journal Nature on Wednesday, found that among a sample of 68 healthy adults in Germany who had not been exposed to the coronavirus, 35 per cent had T cells in their blood that were reactive to the virus.
T cells are part of the im…

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