Disneyland has shut down two cooling centers following an outbreak of Legionnaires disease.
Orange County health officials say nine people who visited the park in September became sick.
Legionnaires' disease is a severe form of pneumonia.
It is typically contracted by breathing mist from the water that contains legionella bacteria.
According to an Orange County doctor once they have the symptoms it's not like a typical walking pneumonia. People can get quite sick.
People can have cough, high fevers, and chest pain because of the coughing. They can feel very ill, and their body can ache.
The towers at Disneyland Park have been treated with chemicals to destroy any remaining bacteria.
They will remain shut down until health officials confirm they are safe.