80% Covid Immunity Lost In 6 Months In Some After Pfizer Jab

80% Covid Immunity Lost In 6 Months In Some After Pfizer Jab: US Study : Rashtra News The antibodies produced by the Pfizer decreased more than 80 per cent in 6 months.Washington: COVID-19 antibodies produced by the Pfizer vaccine decreased more than 80 per cent in senior nursing home residents and their caregivers six months

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