Effectiveness of a third dose of the BNT162b2 mRNA COVID-19 vaccine for preventing severe outcomes in Israel: an observational study – The Lancet Invited Commentary: Boosters appear effective, but are they always needed? – The Lancet   Commentaries on Twitter Nice analysis of boosters in @TheLancet Fri.: https://t.co/KqXInFa3a9 But I want to highlight one number: […]

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