Photo/Illutration People wearing masks brave strong winds in front of Shinjuku Station in Tokyo on Feb. 4. (Nobuo Fujiwara)

Tokyo confirmed 272 new cases of COVID-19 on Feb. 21, the 15th straight day for the figure to remain below 500.

Metropolitan government officials said the tally brought the seven-day case average through Feb. 21 to 341.6, down by 10.1 percent from the number of the preceding week.

Of the 272 new cases, people aged 65 or older formed the largest group of patients, at 56.

They were followed by 54 patients in their 30s, 53 in their 20s and 47 in their 40s.

The number of serious cases stood at 82, the same as the day before.

Tokyo defines serious cases as patients requiring ventilators or an extracorporeal membrane oxygenation (ECMO) device, which circulates blood through an artificial lung.