Infectious Diseases

Legionnaires’ Disease Data

Purpose

To monitor the epidemiology and incidence of Legionnaires’ disease. Legionnaires’ disease (LD), primarily caused by the bacterium Legionella pneumophila, is a respiratory illness characterized by fever, cough, shortness of breath, muscle aches, headaches, and pneumonia. Illness often results in hospitalization and has a 10% fatality rate. Symptoms develop 2-14 days following exposure to an environmental source, primarily through inhalation of aerosolized water containing Legionella. Legionella is not usually transmitted from person-to-person.

Data Collection Period

Through 2022, the data below were collected as part of RIDOH’s routine surveillance of Legionnaires’ disease. Preliminary data from 2023 are available upon request by calling by calling 401-222-2577.

Data Source

Rhode Island National Electronic Disease Surveillance System

Legionnaires’ Disease Data

Purpose

Data Collection Period

Data Source

Cases and Rates of Legionnaires’ Disease by Year

Cases and Rates of Legionnaires’ Disease by Year and Sex

Cases and Rates of Legionnaires’ Disease by County And Year

Cases and Rates of Legionnaires’ Disease by Age

Average Cases of Legionnaires’ Disease by Month of Illness Onset