Kosuke Tamura, Noriko Inasaki, Masae Itamochi, Yumiko Saga, Takahisa Shimada, Shunsuke Yazawa, Hitoshi Sasajima, Chikako Kawashiri, Emiko Yamazaki, Tomomi Ichikawa, Hiroyasu Kaya, Yoshihiro Yamamoto, Yoshitomo Morinaga, Seiji Yamashiro, Satoshi Nomura, Shinichi Takeda, Hiroyuki Itoh, Koujiro Hirota, Yukio Horie, Norikazu Hirano, Tsuyoshi Sekizuka, Makoto Kuroda, Hideki Tani, Kazunori Oishi
We studied 226 patients in Toyama Prefecture, notified with COVID-19 during the first wave between March 30 and May 18, 2020. Of the 226 patients, 22 (9.7%) died, of whom most (95%) were aged ≥65 years. A large cluster comprising 59 patients (41 residents and 18 staff members) was identified in a nursing home on April 17. No deaths occurred among the staff members, but 12 of the 41 cases in residents (29%) died. Although the Ct values were significantly lower in the 20-64 and the ≥65 years age-groups than in the age <20 years age-group, no correlation was found between the Ct values and the severity, fatal outcome, or secondary infection...
October 31, 2023: Japanese Journal of Infectious Diseases