People who got a fourth shot of the Pfizer/BioNTech vaccine had a fivefold increase in antibodies one week later, according to data from Israel
a fourth dose of the Covid-19 vaccine
from Pfizer Inc. and BioNTech SE will provide safe and effective protection against infection and severe illness for those with waning immunity. There was a fivefold increase in antibodies of individuals one week after they got their fourth shot, according to data from Israel’s Sheba Medical Center, which provided the dose to 154 medical workers of various ages. The personnel who took part in the trial had taken a third shot by Aug. 20 and their tests showed they lacked sufficient antibodies for good protection.
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