Coronaviruses are a large family of viruses which may cause illness in animals or humans. In humans, several coronaviruses are known to cause respiratory infections ranging from the common cold to more severe diseases such as Middle East Respiratory Syndrome (MERS) and Severe Acute Respiratory Syndrome (SARS). The most recently discovered coronavirus causes coronavirus disease COVID-19.What is a coronavirus? (WHO) Background
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Situation in Each Prefecture
Domestic casesCharter case incl.
New confirmed (daily)
Press Releases (COVID-19)
PCR tests conducted (daily)
New Recovered (daily)
Main contents of consultation to date
Status of the Call Center of the Ministry of Health, Labour and Welfare
Number of consultations received (daily)
Age & Gender
Progression of symptoms
After April 22, due to changes in the method of aggregation by the Ministry of Health, Labour and Welfare, the number of hospital discharges and death reported includes the number of patients undergoing reconciliation, and there is a discrepancy between the pooled values and the total number of PCR-positive. This figure is still drawn using the data that have been verified. The figure is therefore for reference only.
Route of Infection
Outbreaks in Hokkaido
Outbreaks in Aomori
Outbreaks in Iwate
Outbreaks in Miyagi
Outbreaks in Ibaraki
Outbreaks in Fukuoka
Community Mobility Reports
COVID-19 BULLETIN BOARD
The project is a website for real-time visualization of the COVID-19 epidemic in Japan, developed mainly using the
R language with
shiny and other open-source packages. It mainly shows various indicators including, but not limited to, PCR test, positive confirmed, hospital discharge and death, as well as trends in each prefecture in Japan, and there are also a variety of charts such as cluster network, new confirmed case in log scale for users' reference.
Online Access Links
About the data
The data used on this site are all public data sets, mainly divided into the following three categories:
- Real-time data are collected based on the news media: the number of confirmed diagnoses and deaths are from News Digest and the values are consistent with the above-mentioned website.
- Aggregated data announced by the Ministry of Health, Labour and Welfare, such as number of PCR tests conducted, hospital discharges, calls to the novel coronavirus call center, etc.
- Company (SIGNATE COVID-19 Dataset), dataset collected by other volunteers (@kenmo_economics）and data from open source projects derived from the Tokyo COVID-19 Information (those dataset are updated by the official or the maintainers based on information from the municipality), etc.
Due to the complexity of the data, differences in aggregation time periods or standard issues, there are more or less minor differences in values. Statistical standards vary from media to media, so it is normal for values to vary from site to site. Therefore, all charts and values on this site are for reference only. Please be aware that this website and its management team are not responsible for any problems arising from the secondary use of the contents and materials published on this website.
- R-related technical support: @uribo
- Data automation updates: @emckk
- Japanese Localization: @kilisame4
All interested parties are welcome to join this open source project!