Association between sore throat and early immune responses against COVID-19 before and after the emergence of the Omicron variant

Yusuke Takegoshi, Kentaro Nagaoka, Toshiki Kido, Hitoshi Kawasuji, Yushi Murai, Makito Kaneda, Kou Kimoto, Hideki Tani, Hideki Niimi, Yoshitomo Morinaga, Yoshihiro Yamamoto