Pfizer's fourth shot lowers risk of contracting COVID: study ["geo","news","blog","pakistan","stories","pakistani news","geo entertainment","geo news","geo tv","geo blog","geo kahani"] pfizer's fourth shot lowers risk contracting covid: study 1 2 3 4 5 Submit Entry posted by ADMIN August 3, 2022 55 views Share https://fundayforum.com/blogs/entry/134604-pfizers-fourth-shot-lowers-risk-of-contracting-covid-study/ More sharing options... Followers 0 Infections were reduced by two thirds after second booster, says study
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