Four patients at a veterans home in Illinois have died of Legionnaires’ disease, and six inmates at San Quentin State Prison in Northern California have become ill with the respiratory condition, CNN reports.

The four deaths occurred at the Quincy Veterans Home in Quincy, Ill, Adams County Health Department spokesperson Shay Drummond said. Twenty-five others at the home have tested positive for Legionellosis, the bacteria that causes Legionnaires’ Disease.

In addition to the six confirmed cases in San Quentin prison, 73 inmates are being treated for respiratory illness at the prison’s medical unit but haven’t been diagnosed with Legionnaires’ disease, the prison spokeswoman, Dana Simas, said in a news release.

Five inmates with pneumonia-like symptoms have been sent to outside hospitals but haven’t been diagnosed either.