Single Covid vaccine dose in Israel 'less effective than we thought'

By contrast, those who had received their second dose of the Pfizer vaccine had a six- to 12-fold increase in antibodies, according to data released by Sheba Medical Center in Tel Hashomer on Monday. The issue of some vaccines being less effective after a single dose rather than two is well known, as well as the fact that protection is not immediate. While the first dose can take several weeks to

[godmother]

ファイザーのワクチン投与一回目を受けても依然、コロナ感染は拡大を続けているトルコ。二回目投与では十数倍の抗体がつくとはいえ、イギリスでは一回目投与を満遍なく施す現在。どう考えたら良いのかな。