At least 200 health workers at Li's hospital have contracted the virus. Three of Li's colleagues have died.On March 19, Wuhan police withdrew the statement about Li and issued an apology, saying they will "carefully draw a lesson" from the incident. Ai Fen, an emergency surgeon at the hospital, later revealed that she was the "whistle provider" who gave the diagnosis report to Li. Realizing that the virus could be contagious, she required everyone in the emergency department to wear masks.