New research reveals how a single protein interferes with the immune system when exposed to the bacterium that causes Legionnaires' disease, findings that could have broad implications for development of medicines to fight ...
Nov 14, 2018
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Hospitals and homes are havens for germs and disease—but a well-regulated hot water system can prevent the spread of waterborne pathogens, including an emerging infectious disease problem from "superbugs" which can be resistant ...
Jul 20, 2022
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Science is tightening the net around Legionella. A study conducted by the Basque Center for Cooperative Research in Biosciences, CIC bioGUNE, in collaboration with the National Institutes of Health (NIH, USA) and the Barcelona ...
Sep 23, 2014
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Researchers have carried out a genomic analysis of Legionella pneumophila strains of 13 legionellosis outbreaks produced in Alcoy during the period from 1999 to 2010.
Nov 11, 2014
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A new study of domestic and hospital drinking water systems found Legionella in 41% of samples—with Flinders University researchers making a key connection between the pathogen's co-existence with a "host" microorganism ...
Jan 13, 2023
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It is synonymous with an Aussie summer but the humble backyard hose could be a bacterial breeding ground, providing the ideal conditions for the organisms that cause Legionnaires' disease to flourish, UNSW research has revealed.
Feb 23, 2015
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The bacteria that causes Legionnaires' disease was found in rooms of a hotel in a popular Missouri tourist town associated with Mark Twain, and health officials said Tuesday that one of three people who contracted the disease ...
Dec 1, 2015
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The bacteria that cause Legionnaires' disease have been found at several sites in the new Hong Kong government complex after one minister fell ill, in a major embarrassment for the authorities.
Jan 3, 2012
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(HealthDay)—Health officials say they are trying to track down the source of 10 reported cases of Legionnaires' disease within a one-mile radius in a Long Island, N.Y., neighborhood.
Oct 18, 2021
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(AP) -- Health officials in Las Vegas said Monday that the bacteria that causes Legionnaires' disease was found in water samples at the Luxor hotel-casino this month after a guest died of the form of pneumonia.
Jan 30, 2012
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Legionella is a pathogenic Gram negative bacterium, including species that cause legionellosis or Legionnaires' disease, most notably L. pneumophila. It may be readily visualized with a silver stain.
Legionella is common in many environments, with at least 50 species and 70 serogroups identified. The side-chains of the cell wall carry the bases responsible for the somatic antigen specificity of these organisms. The chemical composition of these side chains both with respect to components as well as arrangement of the different sugars determines the nature of the somatic or O antigen determinants, which are essential means of serologically classifying many Gram-negative bacteria.
Legionella acquired its name after a July, 1976 outbreak of a then-unknown "mystery disease" sickened 221 persons, causing 34 deaths. The outbreak was first noticed among people attending a convention of the American Legion - an association of U.S. military veterans. The convention in question occurred in Philadelphia during the U.S. Bicentennial year. This epidemic among U.S. war veterans, occurring in the same city as – and within days of the 200th anniversary of – the signing of the Declaration of Independence, was widely publicized and caused great concern in the United States. On January 18, 1977 the causative agent was identified as a previously unknown bacterium, subsequently named Legionella. See Legionnaires' Disease for full details.
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