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Mixed AstraZeneca-Pfizer shot boosts Covid antibody level, says study

| Jul 26, 2021, 06:40:48 PM | Times Now
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A mixed vaccination of first AstraZeneca and then a Pfizer Covid-19 shot boosted neutralizing antibody levels by six times compared with two AstraZeneca doses, a study from South Korea showed. The study involved 499 medical workers - 100 receiving mixed doses, 200 taking two doses of the Pfizer/BioNTech shot and the remainder getting two AstraZeneca shots.

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