Covid: Pfizer vaccine first dose 'less effective than expected'
Dr Nachman Ash, one of Israel's chief coronavirus medics, said people were still getting infected after the first dose - but Israel does not wait more than 3 weeks for the first dose to take effect.
from Health News | Mail Online https://ift.tt/36ep67t
from Health News | Mail Online https://ift.tt/36ep67t
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