Global One (G1)— Health officials in Los Angeles believe two cooling towers at Disneyland was responsible for a Legionnaires’ disease outbreak that affected 22 people last year.

Legionnaires’ disease is a lung disease that causes symptoms like coughing, shortness of breath, high fever, muscle pains and headaches.

People can catch the disease by inhaling contaminated water droplets like those coming from the cooling towers used to refresh guests in Disneyland.

Dr. Matthew Zahn with the Orange County Health Care Agency came forward with testimony saying tests performed around the time of the outbreak showed Legionella bacteria in the suspected cooling towers.

Disneyland, however, rejects the claims and is appealing the fines, saying there is no scientific evidence to back up the claims.

Zahn said there is no way to 100% confirm his theory without performing additional testing on the towers.

Disney spokeswoman Suzi Brown said of the testimony, “The facts don’t support these claims and the lawsuit has no merit.”