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Un vaccino contro il virus Ebola sarà a portata di mano su scala globale. Lo ha annunciato oggi, venerdì, l'Organizzazione mondiale della sanità (OMS).
Il vaccino VSV-EBOV è stato sviluppato da Health Agency Canada, consegnato in licenza a NewLink Genetics, e sperimentato a inizio anno dall'Ospedale universitario di Ginevra, dando ottimi risultati. Il prodotto ha creato una risposta immunitaria nei 150 volontari a cui è stato iniettato.
Ulteriori test sono iniziati in Guinea il 23 marzo per valutare l'efficacia di una singola dose: il vaccino è stato provato su 4'000 volontari, ottenendo un tasso di successo del 100%.
Il vaccino sembra essere efficace, ma necessita di nuovi dati per sapere se potrà conferire l'immunità a intere popolazioni, ha dichiarato il vicedirettore dell'OMS. Il processo andrà avanti, ha continuato, e sarà esteso anche a bambini e adolescenti.
L'epidemia ha contagiato finora 27'748 persone e causato la morte di 11'279 dallo scorso anno in Guinea, Liberia e Sierra Leone.
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