Danville officials say Shimansky is in a drug induced coma and is recovering from a bacterial meningitis.
Shimansky has served on the council since 1989
"It's just taken all of us by complete shock. At this point I think we're just waiting to hear what his prognosis is," Andersen told the paper.
Anderson said family and friends are optimistic Shimansky will recover.
He is married and has three children.