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Covid vaccines still effective against Delta variant
But they don鈥檛 appear to be successful in preventing infected people from passing it on.
But they don鈥檛 appear to be successful in preventing infected people from passing it on. Also: The World Health Organisation condemns the rush by wealthy countries to provide Covid-19 vaccine booster shots, and the first positive case has been detected in the Tokyo Paralympics village, just days before the Games are due to start.
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