While aboard a cruise ship, 10 passengers report having muscle pains, chills, and fever. they all drank from a water fountain located at the stern on the second floor of the ship. you immediately suspect they have legionnaires disease. this disease is most commonly caused by legionella pneumophila, which is normally found living within amoebae. from this scenario, identify the reservoir and source of pneumophila.

The reservoir : water fountain located at the stern/ source: water

Explanation:

Legionnaires disease  is a form of pneumonia caused by any type of bacteria Legionella. The bacteria is naturally present in freshwater and can contaminate hot water tanks, bathtubs and large air conditioner cooling systems. The disease is usually catched by inhaling droplets of water contaminated with the bacteria, but It can also be by aspirating contaminated water into the lungs. It is not transmitted directly between people and most exposed people are not infected.

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