The department says it was alerted early Tuesday by hospital medical staff that a resident of the Manteno Veterans' Home had tested positive for the flu-like illness.
IDVA Director Stephen Curda says he directed staff to notify all residents or their next of kin or power of attorneys. The department also is activating a water safety response plan, which includes testing the water and checking residents' vital signs more often.
Thirteen residents died and dozens of others were sickened after a 2015 outbreak of Legionnaires' disease at the veterans' home in Quincy. Gov. Bruce Rauner faced heavy criticism for not immediately alertingresidents or the public.