An Israeli hospital administered fourth COVID-19 vaccine doses to a test group of health workers on Monday, in what it called the first major study into whether a second round of boosters will help...
from NDTV News - World-news https://ift.tt/3pvTfJe
from NDTV News - World-news https://ift.tt/3pvTfJe
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December 27, 2021
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