SM Entertainment had a phone call with Newsen on the 4th, stating:
He is currently receiving Tamiflu and other treatments in his home. He wasn't in a serious condition to begin with and because of his strong and fit body, he is showing a fast recovery. The hospital estimated that he will be fully recovered within a week.
As for now,the group will be promoting as a 4 member group until Jong Hyun is fully recovered.