Photo/Illutration The Tokyo metropolitan government building (Asahi Shimbun file photo)

The Tokyo metropolitan government reported a record 584 fresh COVID-19 cases on Dec. 5, and Osaka logged 399 the same day.

Of the new patients in Tokyo, 137 were in their 20s, 110 in their 30s, 95 in their 40s and 83 in their 50s.

Fifty-five patients were classified as having severe symptoms that require the use of a ventilator or an extracorporeal membrane oxygenation (ECMO) device, which circulates blood through an artificial lung. The figure was an increase of two from the previous day.

The tally in Osaka marked the fifth straight day prefectural officials have confirmed more than 300 fresh cases.

A total of 22,263 cases have been confirmed in the central Japan prefecture to date.