As of March 17, 2022, the highest number of approximately 1.2 million patients with coronavirus (COVID-19) were confirmed in Tokyo Prefecture in Japan, followed by Osaka Prefecture with about 747.9 thousand people. On that day, all prefectures out of 47 reported new infection cases.

 Tokyo and Kanagawa  The first coronavirus case in Japan was confirmed on January 16, 2020, in Kanagawa prefecture. Part of the Greater Tokyo Area, Kanagawa is the country’s second-most populous prefecture with more than nine million inhabitants. A few days after the first case in Kanagawa, Japan’s second case was reported in Tokyo. Kanagawa and Tokyo, along with Osaka, and four other prefectures, were the first to be placed under a state of emergency by then prime minister Shinzo Abe in April 2020. From the outbreak of COVID-19 until March 2022, the state of emergency was announced four times for Tokyo and three times for Kanagawa Prefecture.

 Osaka Osaka prefecture reported its first case of COVID-19 on January 29, 2020. The prefecture is the center of Japan’s second-most populated urban region, the Keihanshin metropolitan area, which includes Kyoto and Hyogo prefectures. The virus continued to spread in Osaka with the acceleration of new infection cases per day recorded in January, April to May, July to September in 2021, and January and onwards in 2022.

For further information about the coronavirus (COVID-19) pandemic, please visit our dedicated facts and figure page. 

On March 15, 2022, 2,578 cases of coronavirus disease (COVID-19) were confirmed in Tokyo Prefecture. The number peaked at around 16.9 thousand on January 31, 2022. Following the accelerated development of cases in the prefecture, the Tokyo prefectural government rose the alert status of the infection level to the highest out of four levels.

Government measures Since the outbreak of the disease in the nation in January 2020, the Japanese government has announced the state of emergency four times for respective prefectures. Tokyo Prefecture was one of the prefectures that were under the state of emergency all four times. To ease the strain on medical facilities, Tokyo prefectural government added about 1,000 beds for COVID-19 patients in private facilities such as sports centers. As of March 2022, over 7,200 beds were designated for patients with the disease in the prefecture.

Tokyo Olympics and Paralympics As a direct impact of COVID-19, the Tokyo 2020 Summer Olympic and Paralympic Games were postponed to 2021. Consequently, the games took place from July to September 2021, one year after the original plan. The games were held without any overseas audience, and initially anticipated economic growth from inbound tourism in the nation did not materialize. 

For further information about the coronavirus (COVID-19) pandemic, please visit our dedicated facts and figure page.

On July 27, 2021, there were seven positive cases of coronavirus (COVID-19) reported in the near vicinity of the Olympic Summer Games in Tokyo in 2021. Between July 1 and July 27, there have been a total of 155 positive cases, of which 18 were attributed to athletes.

As of September 14, 2022, a cumulative total of approximately 3.1 million people in Tokyo Prefecture tested positive for the coronavirus (COVID-19). Among them, close to three thousand patients were still hospitalized, roughly three million patients were discharged already, and around six thousand patients passed away. Tokyo recorded an accelerated development of new cases per day again from January 2022 onwards.

For further information about the coronavirus (COVID-19) pandemic, please visit our dedicated facts and figure page.

As of April 17, 2020, Tokyo Prefecture recorded the highest density of people infected with the coronavirus (COVID-19) among all 47 prefectures in Japan, with approximately 20.1 infected people per 100 thousand inhabitants in the prefecture. Ishikawa Prefecture recorded the second highest density, with around 14.1 people per 100 thousand inhabitants in the prefecture being infected with the virus. There was an average of around 7.8 infected people per 100 thousand inhabitants in Japan during the measured time period.

In terms of the total number of infection cases, Tokyo and Osaka Prefecture were the two prefectures with the highest number of patients of COVID-19 as of April 2020.

For further information about the coronavirus (COVID-19) pandemic, please visit our dedicated facts and figure page.

Introduction: As of June 7, 2021, the outbreak of Coronavirus Disease 2019 (COVID-19) has spread to more than 200 countries. The global number of reported cases is more than 172.9 million, with more than 3.7 million deaths, and the number of infected individuals is still growing rapidly. Consequently, events and activities around the world were canceled or postponed, and the preparation for sporting events were greatly challenged. Under such circumstances, about 11,000 athletes from ~206 countries are arriving in Tokyo for the 32nd Summer Olympic Games. Therefore, it is urgently necessary to assess the occurrence and spread risk of COVID-19 for the Games.Objectives: To explore effective prevention and control measures for COVID-19 in large international events through simulations of different interventions according to risk assessment.Methods: We used a random model to calculate the number of initial infected patients and used Poisson distribution to determine the number of initial infected patients based on the number of countries involved. Furthermore, to simulate the COVID-19 transmission, the susceptible-exposed-symptomatic-asymptomatic-recovered-hospitalized (SEIARH) model was established based on the susceptible-exposed-infectious-recovered (SEIR) mathematical model of epidemic diseases. According to risk assessment indicators produced by different scenarios of the simulated interventions, the risk of COVID-19 transmission in Tokyo Olympic Games was assessed.Results: The current COVID-19 prevention measures proposed by the Japan Olympic Committee need to be enhanced. And large-scale vaccination will effectively control the spread of COVID-19. When the protective efficacy of vaccines is 78.1% or 89.8%, and if the vaccination rate of athletes reaches 80%, an epidemic prevention barrier can be established.

Introduction: As of June 7, 2021, the outbreak of Coronavirus Disease 2019 (COVID-19) has spread to more than 200 countries. The global number of reported cases is more than 172.9 million, with more than 3.7 million deaths, and the number of infected individuals is still growing rapidly. Consequently, events and activities around the world were canceled or postponed, and the preparation for sporting events were greatly challenged. Under such circumstances, about 11,000 athletes from ~206 countries are arriving in Tokyo for the 32nd Summer Olympic Games. Therefore, it is urgently necessary to assess the occurrence and spread risk of COVID-19 for the Games.Objectives: To explore effective prevention and control measures for COVID-19 in large international events through simulations of different interventions according to risk assessment.Methods: We used a random model to calculate the number of initial infected patients and used Poisson distribution to determine the number of initial infected patients based on the number of countries involved. Furthermore, to simulate the COVID-19 transmission, the susceptible-exposed-symptomatic-asymptomatic-recovered-hospitalized (SEIARH) model was established based on the susceptible-exposed-infectious-recovered (SEIR) mathematical model of epidemic diseases. According to risk assessment indicators produced by different scenarios of the simulated interventions, the risk of COVID-19 transmission in Tokyo Olympic Games was assessed.Results: The current COVID-19 prevention measures proposed by the Japan Olympic Committee need to be enhanced. And large-scale vaccination will effectively control the spread of COVID-19. When the protective efficacy of vaccines is 78.1% or 89.8%, and if the vaccination rate of athletes reaches 80%, an epidemic prevention barrier can be established.

As of August 12, 2021, the number of athletes who tested positive at the Tokyo 2020 Olympics amounted to **. In total, over *** positive cases of people who were directly involved with the Tokyo 2020 Olympics have been registered since the first of July, 2021, with Tokyo 2020 contractors comprising the majority of cases.

Latest update on April 3, 2020 (GMT+9) (Tokyo, Japan)

Additional file 1.

As of March 31, in 2020, there were a total of 26 confirmed cluster infection cases of the coronavirus disease (COVID-19) in Japan. Tokyo Prefecture and Hyogo Prefecture had the highest number with four clusters each. Tokyo also marked the highest number of patients with the virus as of April 2.

For further information about the coronavirus (COVID-19) pandemic, please visit our dedicated facts and figures page.

■Purpose and Overview (1) Coronavirus Response Leaders and Certified Stores The purpose of the program is to further promote initiatives against COVID-19 while balancing economic activities by subsidizing the purchase costs of consumables related to the COVID-19 infection prevention measures implemented by businesses at stores that are staffed by Coronavirus Response Leaders who have completed training by Tokyo or stores that have received certificates of thorough infection prevention inspections. (2) General Frame The purpose of this grant is to contribute to the promotion of economic activities by Small and Medium-Sized Enterprises residents in Tokyo by subsidizing the purchase of consumables related to COVID-19 countermeasures by Small and Medium-Sized Enterprises residents in Tokyo.

■ Recipients of Grants (1) Coronavirus Response Leaders and Authorized Stores Tokyo Small and Medium-Sized Enterprises Operators (companies and sole proprietors), general incorporated foundations, general incorporated associations, specified non-profit organizations (NPOs) that operate stores in Tokyo that have Coronavirus Response Leaders or stores that have been issued certificates for thorough infection prevention inspections ※ Stores that have a business license for restaurants (2) General Limits Tokyo Small and Medium-Sized Enterprises Operators (companies and sole proprietors), general incorporated foundations, general incorporated associations, specified non-profit organizations (NPOs), Small and Medium-Sized Enterprises Organizations, etc.

※ Medical Corporations, Social Welfare Corporations, Educational Corporations, Commerce and Industry Associations, Federation of Commerce and Industry Associations, Chamber of Commerce and Industry, Public Interest Incorporated Foundations, Public Interest Incorporated Associations, etc, Shopping district promotion associations and religious corporations are not eligible.

■ Funding Rate (1) Coronavirus Leader, Authorized Dealer Limit Within 4 of 5% of eligible expenses (less than 1000 JPY rounded down) (2) General Limit Within 2 of 3% of eligible expenses (less than 1000 JPY rounded down)

■ Funding Rate (1) Coronavirus Leader, Certified Retail 100,000 JPY per 1 location (Tokyo location only) (2) General Availability 100,000 4 per 1 location (Tokyo location only)

■ Funding Period Saturday, January 1, 2022 to Sunday, May 7, 2023 Purchase, Delivery and Payment must be completed within this period.

■ Contact Information Tokyo Small and Medium-Sized Enterprises Public Interest Incorporated Foundation Infectious Disease Control Support Grant Office Telephone: 03-4335-7990

■ Reference URL https://www.tokyo-kosha.or.jp/support/josei/jigyo/final/kansentaisaku.html

■ Remarks ・ grants have rules. Before applying, please be sure to read the "Application Guidelines" posted on the above website. In the case of ・ "Coronavirus Response Leaders, Certified Dealers," it is possible for each 1 business operator to apply multiple times if different stores apply, but the same store will be subsidized only once in 1 (even if the COVID-19 response leader is changed, the same store will not be subsidized again). Since ・'s "general quota" is adopted by 1 Company 1, if you want to apply for multiple offices, apply at once.

Time series data of the daily reported number of new positive cases of COVID-19 for the entire country of Japan from 16 January 2020 to 21 February 2023.

As of August 10, 2021, approximately 290 thousand COVID-19 screening tests were administered at the Tokyo 2020 Olympics in Japan in the case of athletes and team officials. Likewise, 387 thousand screening tests were done on other stakeholders, including various types of employees and volunteers who were involved in the Olympics.

According to a survey conducted in March 2020, more than half of respondents in Japan agreed to the suggestion that the Tokyo 2020 Olympics should be postponed considering the global pandemic outbreak of the novel coronavirus (COVID-19). The International Olympic Committee (IOC) and Japanese government had not yet determined the attitude towards the situation as of middle of March. The health ministry in the country announced on March 19 that there were a total of *** confirmed cases of COVID-19 in Japan.

Inflation Rate in Japan decreased to 3.50 percent in May from 3.60 percent in April of 2025. This dataset provides the latest reported value for - Japan Inflation Rate - plus previous releases, historical high and low, short-term forecast and long-term prediction, economic calendar, survey consensus and news.

As of May 31, 2024, the number of bankruptcies in Japan directly related to the impact of the coronavirus disease (COVID-19) amounted to ***** cases in Tokyo Prefecture. In total, around *** thousand business enterprises in the country went bankrupt due to COVID-19.

A total of 712 people were infected with COVID-19 on the Diamond Princess cruise ship – 567 passengers and 145 crew members. The cruise ship, which had more than 3,500 people on board, was quarantined for around two weeks. All passengers and crew members had finally disembarked the ship by March 1, 2020.

What happened on the cruise ship? The Diamond Princess cruise ship was on a 14-day round trip that departed from Yokohama, Japan, on January 20, 2020. The turnaround of passengers and crew was delayed upon the ship’s arrival back in Yokohama because a guest tested positive for COVID-19 after disembarking in Hong Kong. Screening for the virus took place on board the ship, and as the number of positive cases increased, it was confirmed that the ship would remain quarantined until February 19, 2020. Once the quarantine period was over, people who were cleared of the illness were free to leave the ship. All of the 2,666 guests aboard the Diamond Princess had disembarked by February 27, 2020, and the final group of crew members left the ship a few days later.

The coronavirus outbreak in Japan The Diamond Princess cruise ship was carrying passengers from around the world, but approximately half of the guests were from Japan. The country tackled the early outbreak of COVID-19, and Prime Minister Shinzo Abe lifted a month-long state of emergency in late May. However, an upswing in the number of coronavirus cases has highlighted the complexity of easing lockdown measures while the virus is still a threat. Japan is divided into 47 prefectures, and Tokyo has been the most severely affected.

As of April 20, 2020, the highest number of hospital-acquired infections (HAI) with the coronavirus disease(COVID-19) was recorded in Tokyo Prefecture, in which 375 cases were confirmed across eight hospitals. The northernmost prefecture Hokkaido had the second highest number of hospital-acquired infections with 95 cases in seven hospitals.

For further information about the coronavirus (COVID-19) pandemic, please visit our dedicated facts and figure page.

After the Japanese government declared a state of emergency on April 7 due to the spread of the coronavirus disease (COVID-19), the number of people going outside declined significantly across Japan. As of August 27, 2020, the number of people in Shibuya area in the center of Tokyo Prefecture was down by approximately 26 percent compared to January and February, when the number of infection cases were relatively low. When compared to right after the declaration on April 7 at 3 pm, the number of people outside increased by around 29 percent in the area.

Tokyo has been the prefecture with the highest number of COVID-19 patients since the end of March 2020. On May 25, the government lifted the state of emergency in all 47 prefectures in the country. The Tokyo prefectural government lifted the business suspension request as well for almost all the businesses on June 11.

For further information about the coronavirus (COVID-19) pandemic, please visit our dedicated facts and figure page.