By: The New York Times

Legionella, usually Legionella pneumophila, is the bacteria that causes Legionnaires’ disease, a respiratory condition. It can form in stagnant water and then disperse through the air and be inhaled when, for example, a shower or tap is turned on. It can be fatal in one in 10 cases, according to the Centers for Disease Control and Prevention. Although young children are less at risk of Legionnaires’, older students, adults and people with compromised immune systems are vulnerable.

Read more: https://www.nytimes.com/2020/08/27/health/covid-schools-legionnaires-disease.html