Prognosis
Chronic Covid-19 and Convalescent Plasma May Boost Mutation Risk
- Report details variants that arose over 102 days of treatment
- Researchers say convalescent plasma should be used cautiously
Fresh plasma from Covid-19 convalescents.
Photographer: Omar Marques/Getty Images
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British doctors who spent 102 days treating a cancer survivor for Covid-19 documented how the virus mutated after the man was treated with convalescent plasma.