Photo/Illutration Social distancing is the norm during a lunch break in Tokyo on Oct. 27. (AP Photo)

Tokyo reported 171 fresh cases of the novel coronavirus on Oct. 28, the fourth straight day of the daily figure being well under the 200 mark.

By age, the highest number of new cases, 41, concerned patients in their 20s, followed by 31 in their 30s, 28 in their 40s and 23 in their 50s.

Patients aged 65 or older, who are at risk of developing serious symptoms, totaled 28.

The capital's number of serious cases stood at 30, down by three from the previous day. Tokyo defines serious cases as patients on ventilators or on extracorporeal membrane oxygenation (ECMO) lung bypass machines.