Cook County Jail officials confirmed the first case of swine flu among inmates Thursday.
A 35-year-old Chicago man tested positive for the H1N1 flu virus on Wednesday after exhibiting symptoms of the flu three days earlier, according to a release from Cook County Sheriff Tom Dart's office.
The man entered the jail on a drug possession charge Saturday and first showed signs of the flu the next day. He was immediately moved into quarantine at Cermak Hospital. Division 5, the medium-security tier where the inmate had been housed, will be quarantined until Thursday. No one else on Division 5 had experience flu-like symptoms, according to the release.
The infected detainee will return to his unit on Sunday.
The jail limited visitation because of flu concerns Saturday, allowing only immediate family members and attorneys to see detainees. That policy will remain in effect until further notice.
No other cases of swine flu have been reported within the jail. On Wednesday, the Illinois Department of Public Health confirmed at least 225 cases of swine flu in the state.