很成熟了,每年隻需一劑。但新冠變異株太多,注射疫苗後,到底體內能產生多長時間的抗體,還捉摸不透,估計近期也難二劑混打。
很成熟了,每年隻需一劑。但新冠變異株太多,注射疫苗後,到底體內能產生多長時間的抗體,還捉摸不透,估計近期也難二劑混打。
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