The main library in northwest suburban Palatine reopened Friday after a bedbug scare.
Two of the bugs were found on a library table in an isolated room Wednesday night.
The library closed Thursday so professional cleaners could disinfect the building.
The library posted a statement on its website saying a team including a bug-sniffing dog was brought in to search the 90,000-square-foot building and verify it was bug-free. No bedbug larva or eggs were found.
Library Director Anthony Auston says inspectors believe the bugs fell off an exposed patron.