Il Centro ospedaliero universitario vodese (CHUV) di Losanna comincerà venerdì la sperimentazione di un vaccino contro l'ebola su dei volontari. Lo ha annunciato martedì alla stampa il professore Blaise Genton, della sezione malattie infettive del CHUV. Swissmedic, l'Istituto svizzero per gli agenti terapeutici, ha già dato il suo via libera ai test. Lo studio, voluto dall'Organizzazione mondiale della sanità, proseguirà quelli già effettuati negli Stati Uniti, in Inghilterra e nel Mali.
Sarà condotto su 120 partecipanti volontari e sani (alcuni riceveranno solo un placebo). Il vaccino, basato su un adenovirus geneticamente modificato degli scimpanzé, sarà somministrato principalmente a personale medico che sarà impiegato nella lotta all'epidemia in Africa occidentale. Saranno verificate sia la sua sicurezza che la capacità di produrre una risposta immunitaria.
I test al CHUV, insieme a quelli in altri centri coinvolti, serviranno da base per pianificare i successivi su migliaia di soggetti. I primi risultati sono attesi nel giro di due mesi.
ats/pon/ZZ
Dal TG20
RG 07.00 del 29.10.2014 La corrispondenza di Gabriele Fontana
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