Now the spread of infection has picked up speed again in the Japanese capital Tokyo.
On Wednesday, 920 new cases were registered.
This is the highest figure since May.
Now the country is acting and announcing a state of emergency during the Olympics.
This means that bars and restaurants with alcohol sales must close during the Olympic Games.
- How to stop people who like to drink alcohol at the Olympics is a major issue, says Minister of Health Norihisa Tamura to AP.
On July 23, the Olympic flame is lit in Tokyo.
The emergency will begin on July 12 and is scheduled to last until August 22.