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Covid-19 immunity lasts at least 8 months: Study

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COVID-19 vaccines will work for long periods.While earlier studies have shown that antibodies against the coronavirus wane after the first few months of infection, raising concerns that people may lose immunity quickly, the new research, published in the journal Science Immunology, puts these concerns to rest.Also Read | How hunger came back to haunt IndiaAccording to the scientists, including those from Monash University in Australia, specific cells within the immune system called memory B cells, "remembers" infection by the virus, and if re-exposed to the virus, triggers a protective immune response through rapid production of protective antibodies.In the study, the researchers recruited a cohort of 25 COVID-19 patients and took 36 blood.

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