Brian Miller

Mary Hansen / NPR Illinois

Sangamon County health officials are limiting the number of participants at large public gatherings, hours after the St. Patrick's Day parade was canceled.

Beginning Saturday and for the next 30 days, all indoor events will be limited to 250 people and outdoor events will be limited to 500. The order will be reassessed in early April as the coronavirus situation develops, health officials said.

Dr. Brian Miller, president of the Sangamon County Board of Health, said at a news conference Thursday afternoon the measures are precautionary and meant to protect residents.