It's been announced that the four members of Junretsu - Sakai Kazuyoshi, Gogami Shota, Shirakawa Yujiro, and Odai Ryohei - have all tested positive for COVID-19. 

According to their official blog, Sakai wasn't feeling well after their concert on the 16th. As such, all members were tested the following day and their results all came back positive. Their conditions are stable, and they will be recuperating under guidance of the health center. 

Junretsu had an event scheduled on the 17th in Osaka, then a lunch and dinner show on the 18th in Aichi, but both were cancelled. They have other concerts and events scheduled for this month, but cancellation or postponement regarding those will be announced as they are determined.