@WHO: "Yesterday, 🇿🇦 announced it was putting a temporary hold on the rollout of the Oxford-AstraZeneca vaccine after a study showed it was minimally effective at preventing mild to moderate disease caused by a variant first identified in 🇿🇦"-@DrTedros #COVID19

@WHO: "Yesterday, 🇿🇦 announced it was putting a temporary hold on the rollout of the Oxford-AstraZeneca vaccine after a study showed it was minimally effective at preventing mild to moderate disease caused by a variant first identified in 🇿🇦"-@DrTedros #COVID19

http://twitter.com/WHO
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