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%.
All Keywords
【저자키워드】 COVID-19, coronavirus disease, severe acute respiratory syndrome coronavirus 2, viruses, respiratory infections, SARS-CoV-2, Japan, Familial clusters, prefectures, 【초록키워드】 secondary attack rate, Asymptomatic, SAR, symptom onset, diagnosed, 【제목키워드】 Familial,
【저자키워드】 COVID-19, coronavirus disease, severe acute respiratory syndrome coronavirus 2, viruses, respiratory infections, SARS-CoV-2, Japan, Familial clusters, prefectures, 【초록키워드】 secondary attack rate, Asymptomatic, SAR, symptom onset, diagnosed, 【제목키워드】 Familial,