Japan prepares for 3rd virus emergency in Tokyo, Osaka areas
People wearing protective masks to help curb the spread of the coronavirus walk along a pedestrian crossing Wednesday, April 21, 2021, in Tokyo. The Japanese capital confirmed more than 840 new coronavirus cases on Wednesday. (AP Photo/Eugene Hoshiko)

People wearing protective masks to help curb the spread of the coronavirus walk along a pedestrian crossing Wednesday, April 21, 2021, in Tokyo. The Japanese capital confirmed more than 840 new coronavirus cases on Wednesday. (AP Photo/Eugene Hoshiko)

Apr. 21, 2021 04:03 AM EDT
A woman wearing a protective mask to help curb the spread of the coronavirus walks at a park Wednesday, April 21, 2021, in Tokyo. The Japanese capital confirmed more than 840 new coronavirus cases on Wednesday. (AP Photo/Eugene Hoshiko)

A woman wearing a protective mask to help curb the spread of the coronavirus walks at a park Wednesday, April 21, 2021, in Tokyo. The Japanese capital confirmed more than 840 new coronavirus cases on Wednesday. (AP Photo/Eugene Hoshiko)

Apr. 21, 2021 04:05 AM EDT
A man wearing a protective mask to help curb the spread of the coronavirus walks through a park Wednesday, April 21, 2021, in Tokyo. The Japanese capital confirmed more than 840 new coronavirus cases on Wednesday. (AP Photo/Eugene Hoshiko)

A man wearing a protective mask to help curb the spread of the coronavirus walks through a park Wednesday, April 21, 2021, in Tokyo. The Japanese capital confirmed more than 840 new coronavirus cases on Wednesday. (AP Photo/Eugene Hoshiko)

Apr. 21, 2021 04:03 AM EDT
People wearing protective masks to help curb the spread of the coronavirus walk Wednesday, April 21, 2021, in Tokyo. The Japanese capital confirmed more than 840 new coronavirus cases on Wednesday. (AP Photo/Eugene Hoshiko)

People wearing protective masks to help curb the spread of the coronavirus walk Wednesday, April 21, 2021, in Tokyo. The Japanese capital confirmed more than 840 new coronavirus cases on Wednesday. (AP Photo/Eugene Hoshiko)

Apr. 21, 2021 04:44 AM EDT