The CDC calculates that for every million people 50 and older who get a fourth dose of vaccine, 830 hospitalizations, 183 intensive care unit admissions and 85 deaths could be prevented.
. It could be the start of a fifth wave of infection in that country, something researchers thought wouldn’t happen because so many people there were previously infected and vaccinated, Jacob Lemieux, an infectious disease researcher at Massachusetts General Hospital in Boston said April 26 in a news briefing. “It has the flavor of, ‘Here we go, again,’” he said. “So much for the idea of herd immunity.
So far, that hasn’t happened with the COVID-19 vaccines, but it could be important to space out doses to prevent such a scenario.. That has nothing to do with apples, serpents and gardens. Instead it happens when the immune system sees a virus or portion of the virus for the first time and trains memory cells to make antibodies against the virus.
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