Use of Epidemic Intelligence from Open Sources for global event-based surveillance of infectious diseases for the Tokyo 2020 Olympic and Paralympic Games

Manami Yanagawa; John Carlo Lorenzo; Munehisa Fukusumi; Tomoe Shimada; Ayu Kasamatsu; Masayuki Ota; Manami Nakashita; Miho Kobayashi; Takuya Yamagishi; Anita Samuel; Tomohiko Ukai; Katsuki Kurosawa; Miho Urakawa; Kensuke Takahashi; Keiko Tsukada; Akane Futami; Hideya Inoue; Shun Omori; Hiroko Komiya; Takahisa Shimada; Sakiko Tabata; Yuichiro Yahata; Hajime Kamiya; Tomimasa Sunagawa; Tomoya Saito; Viema Biaukula; Tatiana Metcalf; Dina Saulo; Tamano Matsui; Babatunde Olowokure

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Use of Epidemic Intelligence from Open Sources for global event-based surveillance of infectious diseases for the Tokyo 2020 Olympic and Paralympic Games

Author: Manami Yanagawa ¹ ; John Carlo Lorenzo ¹ ; Munehisa Fukusumi ² ; Tomoe Shimada ² ; Ayu Kasamatsu ³ ; Masayuki Ota ³ ; Manami Nakashita ³ ; Miho Kobayashi ³ ; Takuya Yamagishi ² ; Anita Samuel ² ; Tomohiko Ukai ³ ; Katsuki Kurosawa ³ ; Miho Urakawa ³ ; Kensuke Takahashi ³ ; Keiko Tsukada ³ ; Akane Futami ³ ; Hideya Inoue ³ ; Shun Omori ³ ; Hiroko Komiya ³ ; Takahisa Shimada ³ ; Sakiko Tabata ³ ; Yuichiro Yahata ² ; Hajime Kamiya ² ; Tomimasa Sunagawa ² ; Tomoya Saito ⁴ ; Viema Biaukula ¹ ; Tatiana Metcalf ¹ ; Dina Saulo ¹ ; Tamano Matsui ¹ ; Babatunde Olowokure ¹
Author Information

1. World Health Organization Regional Office for the Western Pacific, Manila, Philippines
2. Center for Field Epidemic Intelligence, Research and Professional Development, National Institute of Infectious Diseases, Tokyo, Japan
3. Field Epidemiology Training Program, National Institute of Infectious Diseases, Tokyo, Japan
4. Center for Emergency Preparedness and Response, National Institute of Infectious Diseases, Tokyo, Japan
Publication Type:Journal Article
Keywords: mass gatherings, public health surveillance, infectious diseases, Tokyo
From: Western Pacific Surveillance and Response 2022;13(3):18-24
CountryWHO-WPRO
Language:English
Abstract: The establishment of enhanced surveillance systems for mass gatherings to detect infectious diseases that may be imported during an event is recommended. The World Health Organization Regional Office for the Western Pacific contributed to enhanced event-based surveillance for the Tokyo 2020 Olympic and Paralympic Games (the Games) by using Epidemic Intelligence from Open Sources (EIOS) to detect potential imported diseases and report them to the National Institute of Infectious Diseases (NIID), Japan. Daily screening of media articles on global infectious diseases was conducted using EIOS, which were systematically assessed to determine the likelihood of disease importation, spread and significant impact to Japan during the Games. Over 81 days of surveillance, 103 830 articles were screened by EIOS, of which 5441 (5.2%) met the selection criteria for initial assessment, with 587 (0.6%) assessed as signals and reported to NIID. None of the signals were considered to pose a significant risk to the Games based on three risk assessment criteria. While EIOS successfully captured media articles on infectious diseases with a likelihood of importation to and spread in Japan, a significant manual effort was required to assess the articles for duplicates and against the risk assessment criteria. Continued improvement of artificial intelligence is recommended to reduce this effort.
Full text:959 Yanagawa - FINAL v2.pdf