Disneyland California has shut down two water cooling towers after tests showed they gave off mist containing a high level of bacteria, thought to be Legionnaires disease.
Twelve people in the Anaheim region have been affected by the disease, including one who died.
Nine had visited the theme park and the other three, including the deceased, lived in Anaheim, but had not visited Disneyland California.
The victims were aged between 52 and 94. One of those infected was a Disney worker.
The person who died had ‘additional health issues’, doctors said.
Disney shut down the two water cooling towers after officials detected high levels of the bacteria from the virus, according to reports.
Disneyland was informed of the cases on October 27.
There have been no new cases of the disease linked to Anaheim since September, according to Orange County Health Care Agency.
Disneyland said health officials had assured it there was no longer an risk to guests or employees of the park.
