The LA Fitness in Metro West, a suburb of Orlando, FL, has tested positive for Legionella bacteria, less than a week after an LA Fitness in Hunter’s Creek also returned positive results for the disease-causing bacteria, according to the Orlando Sentinel.

Both clubs have been under investigation since May by the Florida Department of Health in Orange County (FDHOC) after two members at each of the Orlando-area clubs were diagnosed with Legionnaires’ disease. The four individuals infected with the disease did not seek further treatment, according to Kent Donahue, a spokesperson for the FDHOC.

The FDHOC ordered both facilities to hyper-chlorinate their water supplies and put filters on shower heads. The agency is awaiting results of follow-up testing to see if the Legionella bacteria has been eradicated by the remediation efforts.