AstraZeneca COVID vaccine up to 90% effective, data shows
AstraZeneca and the University of Oxford have said their jointly-developed vaccine against the coronavirus has shown an average efficacy of 70% in late-stage trials.
The vaccine can prevent 70% of people from getting the virus and up to 90% if a lower dose is used, according to the biopharmaceutical firm’s data.
“This vaccine’s efficacy and safety confirm that it will be highly effective against COVID-19 and will have an immediate impact on this public health emergency.” Pascal Soriot, AstraZeneca’s chief executive.
The vaccine was most effective when it was administered as a half dose followed by a full dose at least one month apart, rather than as two full doses at least one month apart.
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