At a university in Saitama prefecture, it was confirmed that seven male students had been infected with the new coronavirus by the 16th, and the prefecture is investigating the status of infection, assuming that a group of infected people = clusters have occurred.
According to Saitama Prefecture, it was confirmed that four male students belonging to the same sports club were infected with the new coronavirus on the 13th of this month at a university in the prefecture.
Two days later, two new male students and one male student were found to be positive on the 16th, and a total of seven people were confirmed to be infected.
The prefecture is also inspecting other students who belong to the same club activities as clusters have occurred, and is investigating the infection route.