In another dispiriting setback for the nation's efforts stamp out the coronavirus, scientists who studied a big Covid-19 outbreak in Massachusetts concluded that vaccinated people who got so-called breakthrough infections carried about the same amount of the coronavirus as those who did not get the shots.
from US News Headlines, Latest USA News, US news live on Times of India https://ift.tt/3BY6fvt
from US News Headlines, Latest USA News, US news live on Times of India https://ift.tt/3BY6fvt
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