The city health department is warning people they may have been exposed to bats at a recent Salt Shed Concert.
This happened at the Goose concert on Sept. 12.
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The Chicago Department of Public Health says attendees who were bitten or scratched by a bat should contact a health provider immediately, because you may have been exposed to rabies if that bat is a carrier.
If you were at the concert but had no contact with a bat, the health department says you are not at risk.