A Legionnaires' disease outbreak in Central Harlem, New York City, has claimed one life and sickened over 20 others. The outbreak, affecting five zip codes, has seen a rapid increase in cases since last week. Health officials are testing cooling towers for legionella bacteria and have ordered building owners to remediate affected systems. Early diagnosis and treatment are crucial, especially for high-risk individuals. Symptoms include cough, fever, and shortness of breath. While most exposed individuals don't get sick, this outbreak surpasses the city's usual annual average.

Prepared by Olivia Bennett and reviewed by editorial team.