Japan has found 15 clusters of people infected with the novel coronavirus , according to the health ministry, which released an online map showing where they are located in the country as of noon on Sunday. Based on analysis by Hitoshi Oshitani, a virology professor at Tohoku University, and other experts, the map indicates clusters of 50 people or over in red, 10 to 49 in blue, and five to nine in green. The only cluster with 50 or more people infected is in Osaka Prefecture, where infections spread from events held at live music clubs , according to the map. Clusters of 10 to 49 people are found in 10 locations, including Hokkaido, where infections spread from a live music bar, Tokyo, where the people gathered for a new year party on a boat, and Aichi Prefecture, where the virus was contracted at a welfare facility and a gym. Small clusters of five to nine people were found in four locations, including Chiba Prefecture, where infections were found among those at a gym and a welfare facility. The ministry has dispatched health experts to the areas where infection clusters occurred to contain the virus. On Monday, Japan reported the total number of Covid-19 infections had risen to 804, excluding those on the Diamond Princess cruise ship that was quarantined near Tokyo. The country’s death toll is 31. This came as some primary and junior high schools resumed classes on Monday, about two weeks after shutting to prevent the spread of the new coronavirus. The education ministry asked education boards across the country on February 28 to close their schools as part of efforts to contain the outbreak, but the request was not mandatory and it was left to local authorities to decide how long the suspension should last. The education boards of Toyama, Shizuoka, Hamamatsu and Naha cities as well as Okinawa Prefecture decided to end the closures at the schools they run, as infections have not spread within their communities. School closures have significantly affected the lives of children and their parents. “I want to enjoy the remainder of my school life until the graduation ceremony in two days’ time,” said Junon Matsushita, 12, who arrived at Aoi Elementary School in Shizuoka in the morning along with many others who were wearing masks. The boy said he had spent the past two weeks studying and playing with his 18-year-old brother, whose high school was similarly closed. The school decided to keep pupils’ desks apart and open windows for ventilation to prevent potential infections following the restart of classes. Teachers also checked written reports submitted on the children’s body temperatures and health conditions in recent weeks. Initially, 18 education boards had planned to reopen schools on Monday. Thirteen of them, however, decided to extend their closures until the spring break, which normally ends in early April. The 13 included the education boards of the cities of Sapporo, Saitama, Yokohama, Osaka, Sakai, Kobe, Saga and Miyazaki, and the prefectures of Kyoto, Hyogo, Kumamoto, Saga and Kagoshima. Many other education boards in the country announced from the start that they would keep their schools shut until the spring break. Shimane Prefecture and the city of Matsue did not close schools at all. Japanese Prime Minister says Olympics to go ahead despite Trump’s remarks Meanwhile, the Bank of Japan started holding a one-day policy meeting following the US Federal Reserve’s emergency US rate cut. Prime Minister Shinzo Abe said on Monday leaders of the Group of Seven industrialised counties will hold an emergency videoconference later on Monday to discuss their response to the global spread of the coronavirus.