Tag Archives: FOURTH VACCINE DOSE PROTECTS VS OMICRON FOR AT LEAST A MONTH

A fourth dose of the COVID-19 vaccine from Pfizer and BioNTech provided significant added protection against severe disease, hospitalization and death for at least a month in older individuals, according to a study from Israel conducted when the Omicron variant was dominant. The estimated effectiveness of the fourth dose during days 7 to 30 after it was administered compared with …

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