Immunity offered by Pfizer's Covid-19 vaccine decreases after 2 months: Study
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According to two studies conducted in Israel and Qatar, the immunity offered by Pfizer's COVID-19 vaccine decreases nearly 2 months after the doses are administered. However, the protection against severe disease, hospitalisation and death remains the same. As per the study published in the New England Journal of Medicine, even fully vaccinated people need to maintain social distancing and follow the norms.