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#BREAKING AstraZeneca/Oxford say Covid vaccine shows 70% efficacy 
#UPDATE A coronavirus vaccine developed by drug firm AstraZeneca and Oxford University has shown 70 percent effectiveness in trials involved 23,000 people, they said in a statement on Monday
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#UPDATE Evidence suggesting an initial half dose of the coronavirus #vaccine being developed by drugs firm #AstraZeneca and Oxford University is more effective than a full dose is counterintuitive, and even took the researchers by surprise u.afp.com/3Fpp @Kelly_Macnamara
