Emerging Infectious Diseases (Sep 2020)

Clusters of Coronavirus Disease in Communities, Japan, January–April 2020

  • Yuki Furuse,
  • Eiichiro Sando,
  • Naho Tsuchiya,
  • Reiko Miyahara,
  • Ikkoh Yasuda,
  • Yura K. Ko,
  • Mayuko Saito,
  • Konosuke Morimoto,
  • Takeaki Imamura,
  • Yugo Shobugawa,
  • Shohei Nagata,
  • Kazuaki Jindai,
  • Tadatsugu Imamura,
  • Tomimasa Sunagawa,
  • Motoi Suzuki,
  • Hiroshi Nishiura,
  • Hitoshi Oshitani

DOI
https://doi.org/10.3201/eid2609.202272
Journal volume & issue
Vol. 26, no. 9
pp. 2176 – 2179

Abstract

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We analyzed 3,184 cases of coronavirus disease in Japan and identified 61 case-clusters in healthcare and other care facilities, restaurants and bars, workplaces, and music events. We also identified 22 probable primary case-patients for the clusters; most were 20–39 years of age and presymptomatic or asymptomatic at virus transmission.

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