ArticleThe Lancet regional health. Western Pacific2020
Large-scale epidemiological monitoring of the COVID-19 epidemic in Tokyo.
Article in The Lancet regional health. Western Pacific, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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Who cites it
24 citing papers in PubMed.
- Unveiling China's heart disease challenges: a comprehensive retrospective study on national mortality burden.BMC public health · 2025Article
- Indirect and direct effects of nighttime light on COVID-19 mortality using satellite image mapping approach.Scientific reports · 2024Article
- Impact of COVID-19 on risks and deaths of non-communicable diseases in the Western Pacific region.The Lancet regional health. Western Pacific · 2024Review
- Changes to Public Health Surveillance Methods Due to the COVID-19 Pandemic: Scoping Review.JMIR public health and surveillance · 2024Article
- Regional Difference in the Impact of COVID-19 Pandemic on Domain-Specific Physical Activity, Sedentary Behavior, Sleeping Time, and Step Count: Web-Based Cross-sectional Nationwide Survey and Accelerometer-Based Observational Study.JMIR public health and surveillance · 2023Observational
- Distributed lag interrupted time series model for unclear intervention timing: effect of a statement of emergency during COVID-19 pandemic.BMC medical research methodology · 2022Article
- The Use of a Self-triage Tool to Predict COVID-19 Cases and Hospitalizations in the State of Georgia.The western journal of emergency medicine · 2022Article
- Optimizing COVID-19 surveillance using historical electronic health records of influenza infections.PNAS nexus · 2022Article
- Exploring the Spatiotemporal Evolution and Sustainable Driving Factors of Information Flow Network: A Public Search Attention Perspective.International journal of environmental research and public health · 2022Article
- Comparison of longitudinal trends in self-reported symptoms and COVID-19 case activity in Ontario, Canada.PloS one · 2022Article
- Identification of optimum combinations of media channels for approaching COVID-19 vaccine unsure and unwilling groups in Japan.The Lancet regional health. Western Pacific · 2022Article
- Global monitoring of the impact of the COVID-19 pandemic through online surveys sampled from the Facebook user base.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- The Willingness to Pay for a Hypothetical Vaccine for the Coronavirus Disease 2019 (COVID-19).International journal of environmental research and public health · 2021Article
- Information Disclosure Contents of the COVID-19 Data Dashboard Websites for South Korea, China, and Japan: A Comparative Study.Healthcare (Basel, Switzerland) · 2021Article
- A review of GIS methodologies to analyze the dynamics of COVID-19 in the second half of 2020.Transactions in GIS : TG · 2021Review
- Assessing the capacity of symptom scores to predict COVID-19 positivity in Nigeria: a national derivation and validation cohort study.BMJ open · 2021Article
- Decreased human respiratory syncytial virus activity during the COVID-19 pandemic in Japan: an ecological time-series analysis.BMC infectious diseases · 2021Article
- Development and assessment of a hospital admissions-based syndromic surveillance system for COVID-19 in Ontario, Canada: ACES Pandemic Tracker.BMC public health · 2021Article
- Behavioural responses and anxiety symptoms during the coronavirus disease 2019 (COVID-19) pandemic in Japan: A large scale cross-sectional study.Journal of psychiatric research · 2021Article
- COVID-19 and Heat Illness in Tokyo, Japan: Implications for the Summer Olympic and Paralympic Games in 2021.International journal of environmental research and public health · 2021Article
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Authors and funding
13 authors.
Funding
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Abstract
backgroundOn April 7, 2020, the Japanese government declared a state of emergency regarding the novel coronavirus (COVID-19). Given the nation-wide spread of the coronavirus in major Japanese cities and the rapid increase in the number of cases with untraceable infection routes, large-scale monitoring for capturing the current epidemiological situation of COVID-19 in Japan is urgently required.
methodsA chatbot-based healthcare system named COOPERA (COvid-19: Operation for Personalized Empowerment to Render smart prevention And AN care seeking) was developed to surveil the Japanese epidemiological situation in real-time. COOPERA asked questions regarding personal information, location, preventive actions, COVID-19 related symptoms and their residence. Empirical Bayes estimates of the age-sex-standardized incidence rate and disease mapping approach using scan statistics were utilized to identify the geographical distribution of the symptoms in Tokyo and their spatial correlation
findingsWe analyzed 353,010 participants from Tokyo recruited from 27th March to 6th April 2020. The mean (SD) age of participants was 42.7 (12.3), and 63.4%, 36.4% or 0.2% were female, male, or others, respectively. 95.6% of participants had no subjective symptoms. We identified several geographical clusters with high spatial correlation (
interpretationWith the global spread of COVID-19, medical resources are being depleted. A new system to monitor the epidemiological situation, COOPERA, can provide insights to assist political decision to tackle the epidemic. In addition, given that Japan has not had a strong lockdown policy to weaken the spread of the infection, our result would be useful for preparing for the second wave in other countries during the next flu season without a strong lockdown.
fundingThe present work was supported in part by a grant from the Ministry of Health, Labour and Welfare of Japan (H29-Gantaisaku-ippan-009).
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