An assessment of self-reported COVID-19 related symptoms of 227,898 users of a social networking service in Japan: Has the regional risk changed after the declaration of the state of emergency?

• Main Authors: Shuhei Nomura (Author), Daisuke Yoneoka (Author), Shoi Shi (Author), Yuta Tanoue (Author), Takayuki Kawashima (Author), Akifumi Eguchi (Author), Kentaro Matsuura (Author), Koji Makiyama (Author), Keisuke Ejima (Author), Toshibumi Taniguchi (Author), Haruka Sakamoto (Author), Hiroyuki Kunishima (Author), Stuart Gilmour (Author), Hiroshi Nishiura (Author), Hiroaki Miyata (Author)
• Format: Book
• Published: Elsevier, 2020-08-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Background: In the absence of widespread testing, symptomatic monitoring efforts may allow for understanding the epidemiological situation of the spread of coronavirus disease 2019 (COVID-19) in Japan. We obtained data from a social networking service (SNS) messaging application that monitors self-r...