LONDON - Immunity against Covid-19 may last for years in people who have recovered from the virus or received a vaccine, two new studies suggest.
Cells found in bone marrow that are generated during an immune response “may retain a memory of the virus”, The Times reports, meaning they “can produce long-lasting antibodies as a defence against future infections”.
Research published this week in Nature and on BioRxiv, a pre-print online research site, both suggest “these cells strengthen over a period of at least a year”, suggesting people “may not need booster shots… for a considerable period of time”, the paper adds.
