Current Covid-19 vaccines are not well-matched against the BA.2 sub-variant of Omicron, the US Food and Drug Administration said on Wednesday, as its panel of outside experts meets to discuss changes to future booster doses...
Current Covid-19 vaccines are not well-matched against the BA.2 sub-variant of Omicron, the US Food and Drug Administration said on Wednesday, as its panel of outside experts meets to discuss changes to future booster doses...
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