SYDNEY, Nov 30 (Reuters) - The head of drugmaker Moderna said COVID-19 vaccines are unlikely to be as effective against the Omicron variant of the coronavirus as they have been previously, sparking ...
网页链接SYDNEY, Nov 30 (Reuters) - The head of drugmaker Moderna said COVID-19 vaccines are unlikely to be as effective against the Omicron variant of the coronavirus as they have been previously, sparking ...
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