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An Anonymous Coward writes:

https://www.bbc.com/news/world-africa-55975052 [bbc.com]

South Africa has put its rollout of the Oxford-AstraZeneca vaccine on hold after a study showed "disappointing" results against its new Covid variant.

Scientists say the variant accounts for 90% of new Covid cases in South Africa.

The trial, involving some 2,000 people, found that the vaccine offered "minimal protection" against mild and moderate cases.

(Submitter's Note: it's worth pointing out that mild and moderate cases are the less important things to prevent against. The big thing is to prevent severe cases. So even if this proves true, it may not be a huge deal.)

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