Impact of climate change on amoeba and the bacteria they host

Abstract

The findings and conclusions in this report are those of the authors and do not necessarily represent the official position of the Centers for Disease Control and Prevention. * Cases of disease due to Legionella are reported to NNDSS as legionellosis, which includes Legionnaires' disease, Pontiac fever, and extrapulmonary legionellosis, but are referred to as Legionnaires' disease in this figure or table (because almost all legionellosis cases reported in the United States are Legionnaires' disease cases). Only cases of Legionnaires' disease reported to SLDSS are included in this figure or table. All cases of legionellosis (i.e., Legionnaires' disease, Pontiac fever, and extrapulmonary legionellosis) reported to SLDSS are included in this figure. Legionnaires' Disease Surveillance Summary Report, United States-2018 and 2019 | 6 NNDSS The Centers for Disease Control and Prevention (CDC) coordinates collection of data on all notifiable diseases, including Legionnaires' disease, from across the United States through NNDSS. NNDSS is a passive surveillance system for case-level data. Clinicians and laboratories report cases to local or state health departments, who then investigate the cases and report selected data to CDC. For this report, NNDSS data are limited to Legionnaires' disease case counts, basic demographics, date of disease occurrence, and jurisdiction of residence. The Summary of Notifiable Infectious Diseases-United States (hereafter referred to as the Morbidity and Mortality Weekly Report (MMWR) annual report) reports the official statistics for U.S. Legionnaires' disease cases reported to NNDSS prior to 2016 (https://www.cdc.gov/mmwr/mmwr_nd/index.html). Provisional NNDSS data on reported notifiable infectious diseases for all years are published weekly on CDC WONDER (https://wonder.cdc.gov/ nndss/nndss_weekly_tables_menu.asp), and finalized, yearly summary data for years after 2015 are published annually on CDC WONDER (https://wonder.cdc.gov/nndss/nndss_annual_tables_ menu.asp). Jurisdictions may report cases of any case status (i.e., confirmed, probable, suspect, and unknown) to NNDSS, but only confirmed cases of Legionnaires' disease from the 50 U.S. states, the District of Columbia, and New York City were included in MMWR annual reports and on CDC WONDER from 2000 through 2019, with the following exceptions:

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