Epidemiology of Coronavirus Disease 2019 in Yamagata Prefecture, Japan, January–May 2020: the Importance of Retrospective Contact Tracing - Seto, Junji; Aoki, Yoko; Komabayashi, Kenichi; Ikeda, Yoko; Sampei, Mika; Ogawa, Naomi; Uchiumi, Yumiko; Fujii, Shunji; Chiba, Masami; Suzuki, Emiko; Takahashi, Tatsuya; Yamada, Keiko; et al. (Japanese Journal of Infectious Diseases, 2021)
Keywords: close contact; cluster-based approach; Confidence intervals; Contact; Contact Tracing; Coronaviruses; COVID-19; COVID-19 - epidemiology; Disease control; Disease transmission; Epidemiology; Health promotion; Humans; infection source; Infections; Infectious diseases; Japan - epidemiology; Public health; Retrospective Studies; SARS-CoV-2; Severe acute respiratory syndrome coronavirus 2; testing; Viral diseases; Japan; close contact; SARS-CoV-2; cluster-based approach; infection source; testing