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The bacteria grow best at warm temperatures [4] and thrive at water temperatures between 25 and 45 °C (77 and 113 °F), with an optimum temperature of 35 °C (95 °F). [23] Temperatures above 60 °C (140 °F) kill the bacteria. [24]
Legionella is a genus of gram-negative bacteria that can be seen using a silver stain or grown in a special media that contains cysteine, an amino acid.It is known to cause legionellosis [3] (all illnesses caused by Legionella) including a pneumonia-type illness called Legionnaires' disease and a mild flu-like illness called Pontiac fever. [3]
The temperature of tap water should not exceed 38–45 °C (100–113 °F) to prevent discomfort and scalding. [2] However, it is necessary to keep warm water at a temperature of 55–60 °C (131–140 °F) to inhibit the growth of legionella bacteria.
The bacterial pneumonia, which is caused by inhaling water droplets contaminated with Legionella bacteria, was found in five people between June and July, said the New Hampshire Department of ...
Five people have developed Legionnaires' disease following possible exposure to contaminated water droplets from a cooling tower in downtown Lincoln, New Hampshire, state health officials say.
A Legionnaires' disease outbreak in a New Hampshire town that has sickened five people has been traced to contaminated water from a cooling tower. 5 people with Legionnaires' disease exposed ...
Disinfectants such as bleach are used to kill bacteria or other pathogens on surfaces to prevent contamination and further reduce the risk of infection. Bacteria in food are killed by cooking to temperatures above 73 °C (163 °F). [citation needed]
Legionella are naturally occurring environmental bacteria that can grow in water systems and infect people who breathe in contaminated water droplets from showers, hot tubs, faucets, cooling ...