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Una riduzione dell'85% dei casi sintomatici di Covid tra i 15 e i 28 giorni dalla prima dose di somministrazione del vaccino Pfizer. La indica una ricerca svolta allo Sheba Hospital di Tel Aviv in Israele - che sarà pubblicata sulla rivista medica Lancet - condotta su 7'000 operatori sanitari della stessa struttura vaccinati. Se si considerano anche gli asintomatici l'infezione si riduce del 75%.
"Tutto questo - ha osservato Arnon Afek, vice direttore del Centro medico dell'ospedale - conferma la validità della decisione del governo britannico di cominciare a vaccinare i propri cittadini con un'unica dose del vaccino".
"Tutto ciò conferma - ha spiegato Eyal Leshem, direttore del Centro per la medicina di viaggio e le malattie tropicali dello Sheba - l'efficacia di una singola dose di vaccino nella vita reale e mostra una sua precocità anche prima della somministrazione della seconda dose".
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