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美国有专家认为,接种者反而有助于传播新冠变异病毒德尔塔毒株。证据是:More than half of Scotland is fully vaccinated, and 71% of Scots have received at least one dose of a vaccine. But the country is suffering its worst wave of infections.
https://www.msn.com/en-au/news/world/a-leading-us...
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