Japan's cumulative coronavirus cases topped 100,000 on Thursday, including about 30,000 cases in Tokyo.
The nationwide figure topped 90,000 on Oct. 11, meaning that about 10,000 new cases were confirmed in just less than three weeks.
Cumulative cases surpassed 12,000 in Osaka Prefecture, 8,000 in Kanagawa Prefecture and 6,000 in Aichi Prefecture, showing that infection is spreading in urban areas.
On Thursday alone, Tokyo confirmed 221 new cases, with the daily count topping 200 for the first time in five days and exceeding 100 for the 10th day in a row.
Thursday's figure was based on 6,187 tests. People in their 20s made up the largest group of new infections, at 58, followed by those in their 30s, at 48, and those in their 40s, at 41. The government said 29 patients are in serious condition, down one from a day earlier.
On Wednesday, a total of 731 infection cases were confirmed across the country.
The number of newly confirmed cases has been rising slightly since early this month, a health ministry panel of experts said Wednesday.
The panel also warned that cluster infections are occurring in various settings.
Across the nation, the number of people who tested positive for the coronavirus virus per population of 100,000 stood at 2.84 in the week to Oct. 12, 2.95 in the week to Oct. 19 and 3.21 in the week to Monday.
The effective reproduction number, or the average number of people to whom an infected person transmits the virus, has been staying slightly above 1.0, which signals a spread of the virus nationwide.
By prefecture, the number as of Oct. 11 stood at 1.9 in Hokkaido, 0.75 in Tokyo, 1.04 in Aichi, 1.39 in Osaka, 0.96 in Fukuoka and 1.83 in Okinawa.
The board noted that cluster infections have occurred in dining sessions and workplaces, and among groups of foreign nationals living in Japan.
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