“Unlike immunity to influenza .., prior immunity to #SarsCoV2 … doesn’t inhibit later vaccine responses. Rather, it promotes the development of broadly inhibitory antibodies …. people who were repeatedly vaccinated for #COVID19 — initially receiving shots aimed at the original variant, followed by boosters and updated vaccines targeting variants — generated antibodies capable of neutralizing a wide range of SARS-CoV-2 variants and … some distantly related coronaviruses” https://medicine.wustl.edu/news/repeat-covid-19-vaccinations-elicit-antibodies-that-neutralize-variants-other-viruses/
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