In this file photo taken on January 12, 2022 a nurse prepares a dose of a Pfizer/BioNTech vaccine against the coronavirus disease Covid-19. AFPPIX: Senior citizens who received a second booster of the Pfizer–BioNTech Covid-19 vaccination had a 78% lower mortality rate from the disease than those who got one only, a study from Israel showed on Sunday.
Some 58% of participants had received a second booster - or two shots in addition to the basic two-shot regimen. The remainder had received only one booster. Researchers recorded 92 deaths among the first group and 232 deaths among the second, smaller group.
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