At least six San Quentin State Prison inmates were ill with Legionnaires' disease and dozens more under observation Sunday, prompting a weekend halt to visitors, no hot meals and limited drinking water supplies at California's oldest prison.
At least 51 inmates are under observation for respiratory illness at the prison's medical unit, said Dana Simas, a spokeswoman with the California Department of Corrections and Rehabilitation.
The disease, caused by a bacterium, is considered a severe type of pneumonia that can bring high fever, chills and a cough. It occurs when contaminated water is inhaled into the lungs in the form of steam, mist or moisture. It is considered particularly dangerous for older people and those with underlying health issues.
The prison resumed the use of plumbed toilets inside the facility’s housing units, but secondary water sources such as bottled water and water tanks will continue to be used for consumption, the corrections department said.
The department said it has taken steps to prevent the spread of the disease by serving boxed meals to inmates to avoid exposure to steam and mist during cooking operations and halting visiting and volunteer programs.
Portable shower units were also brought in on Saturday, the department said.
Key facts, signs and symptoms of Legionnaires disease:
* Legionellosis is an infection that is caused by a bacterium.
* The bacterium thrives in the mist that is sprayed from air-conditioning ducts.
* The bacterium can infest an entire building.
* The illness takes two distinct forms: Legionnaires' disease and Pontiac fever.
* Legionnaires' disease is the more severe form and can be fatal.
* Pontiac fever is the far milder form of the illness.
* Symptoms of Legionnaires' disease include fever, chills, and a cough.
* At its worst, Legionnaires' disease can cause severe pneumonia and respiratory failure.
Although antibiotics are effective for treatment, the most useful approach is prevention.