156 :名無しさん@Next2ch:2022/01/21(金) 19:22:26.06 ID:g4iz4HDe0EU、頻繁な追加接種に懸念 免疫低下の恐れもhttps://www.nikkei.com/article/DGXZQOCB1220Y0S2A110C2000000/