CNN: Studies confirm waning immunity from Pfizer’s Covid-19 vaccine

CNN: Studies confirm waning immunity from Pfizer’s Covid-19 vaccine. “Two real-world studies published Wednesday confirm that the immune protection offered by two doses of Pfizer’s Covid-19 vaccine drops off after two months or so, although protection against severe disease, hospitalization and death remains strong. The studies, from Israel and from Qatar and published in the New England Journal of Medicine, support arguments that even fully vaccinated people need to maintain precautions against infection.”

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