The delta variant caused a surge of infections. But research at Washington University School of Medicine in St. Louis shows how COVID-19 vaccinations offer protection, which helps to explain why vaccine booster shots are encouraged.
The research analyzed antibodies produced in response to the Pfizer COVID-19 vaccine. Through laboratory testing, the research team discovered that the delta variant was unable to evade all but one of the antibodies. It’s a particular antibody called 2C08
The expectation is that all COVID-19 vaccines generate the same 2C08 antibody, helping to explain why vaccinated people largely escaped the delta surge.
Both natural infection and vaccination provide the antibody protection, but just how long it lasts needs investigation, which is why the research promotes the argument for booster shots.
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