新冠疫苗加强针打在哪个胳膊？ 谁在意打在哪个胳膊。 国外的研究表明，加强针还是应该打在原来的胳膊。 长知识了 When you go to get your newly updated Covid-19 booster this fall, you might want to choose the arm the vaccine goes in carefully. The immune response may be stronger if your booster goes in the same arm as your last Covid-19 shot, according to a study published August 11 in the journal eBioMedicine.
