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THE THIRD dose of Pfizer vaccine, at one week or more inoculation, shows an efficacy against the virus of 86% among the over 60s. This is indicated by the first results of a study conducted by Maccabi, the largest health insurance fund in Israel where over 1 million people have had the booster after double immunization. The study compared nearly 150,000 people on the seventh day after the third dose, with over 675,000 individuals – distinguished by age, gender, social status and population group – with only 2 doses between January and February 2021, 5 months earlier.
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