Vaccines boost natural immunity against COVID-19: Study

The 63 people in the study, which has not been peer-reviewed yet, had COVID in the spring of last year. Data from their follow-ups show that, over time, antibodies produced by the immune system's memory B cells got better at neutralising SARS-CoV-2, the virus that causes COVID-19. The memory B cells serve as an immune reservoir that contains a diverse collection of antibodies.

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