Familial Clusters of Coronavirus Disease in 10 Prefectures, Japan, February−May 2020
oleh: Reiko Miyahara, Naho Tsuchiya, Ikkoh Yasuda, Yura K. Ko, Yuki Furuse, Eiichiro Sando, Shohei Nagata, Tadatsugu Imamura, Mayuko Saito, Konosuke Morimoto, Takeaki Imamura, Yugo Shobugawa, Hiroshi Nishiura, Motoi Suzuki, Hitoshi Oshitani
| Format: | Article |
|---|---|
| Diterbitkan: | Centers for Disease Control and Prevention 2021-03-01 |
Deskripsi
The overall coronavirus disease secondary attack rate (SAR) in family members was 19.0% in 10 prefectures of Japan during February 22–May 31, 2020. The SAR was lower for primary cases diagnosed early, within 2 days after symptom onset. The SAR of asymptomatic primary cases was 11.8%.