HIV researcher uses her T-cell expertise to look at T-cells that fight Covid-19

https://medicalxpress.com/news/2020-08-clues-successful-immune-response-cells.html

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"Our findings suggest that while antibodies against SARS-CoV-2 may fade relatively quickly, long-term immunity to the virus may be generated in the form of memory responses, including that of memory T cells," says Roan. "To confer lasting and effective immunity against COVID-19, vaccination strategies should strongly consider approaches that, in addition to generating neutralizing antibodies, elicit long-lived and multi-functional T cells against SARS-CoV-2."

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