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Coronavirus immunity can last more than six months, study suggests

November 18, 2020. Summarized by summa-bot.

Early research suggests immunity to the coronavirus that causes Covid-19 can last for at least six months -- and possibly much longer, perhaps even years, when all components of the body's immune memory are taken into consideration.

(CNN)Early research suggests immunity to the coronavirus that causes Covid-19 can last for at least six months -- and possibly much longer, perhaps even years, when all components of the body's immune memory are taken into consideration.

Yet the new study, which has not been peer-reviewed or published in a scientific journal, involves analyzing multiple compartments of immune memory over time: antibodies, B cells and T cells, among other features of immune memory.

"B cell memory to some other infections has been observed to be long-lived, including 60+ years after smallpox vaccination, or 90+ years after infection with influenza," the researchers wrote in their study.

It might be expected that those previously infected individuals with a low immune memory response would be susceptible to re-infection with SARS-CoV-2," said Young, who was not involved in the new study.

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