Question

multiple-choice question
legionnaires disease is caused by
eating contaminated food.
swimming in water contaminated with bacteria.
inhaling water drops contaminated with bacteria.

Explanation:

Legionnaires' disease is caused by the bacterium Legionella pneumophila, and the primary mode of transmission is inhaling water droplets (like from air - conditioning systems, hot tubs, etc.) that are contaminated with the bacteria. Eating contaminated food does not cause it, and swimming in contaminated water is not the main way of getting infected (the bacteria are not typically spread through skin contact while swimming in the way that causes Legionnaires' disease). So the correct option is the one about inhaling contaminated water drops.

Answer:

C. Inhaling water drops contaminated with bacteria. (Assuming the options are labeled A, B, C as "Eating contaminated food.", "Swimming in water contaminated with bacteria.", "Inhaling water drops contaminated with bacteria." respectively)