background preloader

INFORMATIONS GENERALES

Facebook Twitter

CDC EID - FEV 2017 - Au sommaire notamment: Outbreak of Legionnaire’s Disease Caused by Legionella pneumophila Serogroups 1 and 13. Toshiro Kuroki1 ( , Junko Amemura-Maekawa1, Hitomi Ohya, Ichiro Furukawa, Miyuki Suzuki, Tomoka Masaoka, Kastuhiro Aikawa, Kazumi Hibi, Masatomo Morita, Ken-ichi Lee, Makoto Ohnishi, and Fumiaki Kura Author affiliations: Kanagawa Prefectural Institute of Public Health, Kanagawa, Japan (T.

CDC EID - FEV 2017 - Au sommaire notamment: Outbreak of Legionnaire’s Disease Caused by Legionella pneumophila Serogroups 1 and 13

Kuroki, H. Ohya, I. Furukawa, M. Highlight and copy the desired format. Abstract In Japan, hot springs and public baths are the major sources of legionellosis. PHYSORG 20/10/16 Clemson students name novel Legionella strain: Clemsonensis. The Clemson family has gained a new namesake: Legionella clemsonensis, a novel strain of the Legionella bacteria, the most common cause of waterborne bacterial outbreaks in the United States.

PHYSORG 20/10/16 Clemson students name novel Legionella strain: Clemsonensis

The Centers for Disease Control and Prevention (CDC) gave the honor of naming L. clemsonensis to students in a collaborative research group called CU and the CDC, which includes students from Clemson's Creative Inquiry (CI) program for undergraduate students and officials in the CDC Legionella lab. The newly named strain of Legionella was part of a batch of 68 strains the CDC sent to Clemson students to analyze. "While we knew they were Legionella, they didn't match up to anything in the current database of bacterial species. It's like knowing their last name but not their first names," said Tamara McNealy, an associate professor of biological sciences who forged the collaboration with Claressa Lucas, director of the CDC Legionella lab, to characterize unknown Legionella strains.

PASTEUR 01/02/16 Comment la bactérie responsable de la légionellose détourne-t-elle la machinerie cellulaire à son avantage ? La légionellose a touché plus de 1300 personnes en France en 2014 et provoqué près de 130 décès.

PASTEUR 01/02/16 Comment la bactérie responsable de la légionellose détourne-t-elle la machinerie cellulaire à son avantage ?

Elle sévit notamment depuis 2014 aux Etats-Unis à Flint (Michigan) où elle a été diagnostiquée chez 87 personnes, ou encore au Portugal où plus de 300 personnes ont été infectées, dont sept sont décédées. Cette maladie émergente est causée par Legionella pneumophila, bactérie environnementale qui se développe dans les circuits d’eau chaude. Eurosurveillance, Volume 17, Issue 49, 06 December 2012 The application of geographic information systems and spatial data during Legionnaires’ disease outbreak responses. A literature review was conducted to highlight the application and potential benefit of using geographic information systems (GIS) during Legionnaires’ disease outbreak investigations.

Eurosurveillance, Volume 17, Issue 49, 06 December 2012 The application of geographic information systems and spatial data during Legionnaires’ disease outbreak responses

Relatively few published sources were identified, however, certain types of data were found to be important in facilitating the use of GIS, namely: patient data, locations of potential sources (e.g. cooling towers), demographic data relating to the local population and meteorological data. These data were then analysed to gain a better understanding of the spatial relationships between cases and their environment, the cases’ proximity to potential outbreak sources, and the modelled dispersion of contaminated aerosols.

The use of GIS in an outbreak is not a replacement for traditional outbreak investigation techniques, but it can be a valuable supplement to a response. Background. CDC EID - Volume 21, Number 6—June 2015 - au sommaire notamment: Reducing the Risk for Waterborne Nosocomial Neonatal Legionellosis. Suggested citation for this article To the Editor: I read with interest the report by Wei et al. (1) regarding 2 cases of neonatal legionellosis associated with infant formula prepared with hospital tap water.

CDC EID - Volume 21, Number 6—June 2015 - au sommaire notamment: Reducing the Risk for Waterborne Nosocomial Neonatal Legionellosis

Two hospitals were involved, and water samples from both were positive for Legionella pneumophila bacteria that had molecular profiles indistinguishable from those for bacteria from the infected neonates. As Wei et al. (1) and others have established, control of waterborne pathogens, such as Legionella spp., in health care institutions remains a work in progress. OMS - Légionellose - Aide-mémoire N° 285 - Novembre 2014. CDC EID - Volume 21, Number 6—June 2015 - Reducing the Risk for Waterborne Nosocomial Neonatal Legionellosis. RIVM 29/10/12 Effectiveness of control measures for Legionella in water supply systems (rapport complet uniquement disponible en. U bevindt zich op: Home › Documents and publications › Effectiveness of control measures for Legionella in water supply systems Growth of Legionella in water supply systems can be controlled by several measures.

RIVM 29/10/12 Effectiveness of control measures for Legionella in water supply systems (rapport complet uniquement disponible en

Water pipes can be flushed regularly (thermal control). Another example of a control method is the use of filters on faucets where aerosolisation takes place (physical control). Copper-silver ionization is a method in which copper and silver ions are passed through pipes (electrochemical control). Also chlorine can be added to the water (chemical control). Some control measures can lead to problems in the execution. This is concluded from a study that was conducted by the RIVM. CSTB - JANV 2012 - Maîtrise du risque de développement des légionelles dans les réseaux d’eau chaude sanitaire. WIKIPEDIA anglophone - fiche legionellosis. Legionnaires' disease (also Legionellosis or Legion Fever) is a form of pneumonia caused by any species of gram negative aerobic bacteria belonging to the genus Legionella.[1] Over 90% of cases of Legionnaires' disease are caused by the bacterium Legionella pneumophila.

WIKIPEDIA anglophone - fiche legionellosis

Other causative species include Legionella longbeachae, Legionella feeleii, Legionella micdadei and Legionella anisa. These species cause a less severe infection known as Pontiac fever, which resembles acute influenza. These species can be water-borne or present in soil, whereas L. pneumophila has only been found in aquatic systems, where it is symbiotically present in aquatic-borne amoebae.[2] It thrives in temperatures between 25°C and 45°C (77°F and 113°F), with an optimum temperature of 35°C (95°F). During infection, the bacterium invades macrophages and lung epithelial cells and replicates intracellularly.[3][4] Transmission[edit] Epidemiology[edit] Reservoirs[edit] Signs and symptoms[edit] Diagnosis[edit]

Fiche legionelle. Un article de Wikipédia, l'encyclopédie libre.

fiche legionelle

Légionelles Culture de Legionella sp. sous UV LegionellaBrenner et al., 1979 Écologie[modifier | modifier le code] Ce sont des bactéries naturellement présentes dans l’eau et dans les boues, responsables d'une maladie respiratoire, la légionellose. WIKIPEDIA - fiche legionellose. Un article de Wikipédia, l'encyclopédie libre.

WIKIPEDIA - fiche legionellose

La légionellose est une maladie infectieuse due à une bactérie d'origine hydro-tellurique de la famille des Legionellaceae (Brenner et al. 1979) dont la plus connue est Legionella pneumophila. La bactérie se développe dans les réseaux d'eau douce naturels ou artificiels et dans un milieu organique favorable à leur développement (stations thermales, climatiseurs[note 1], etc.) riche en fer, zinc, aluminium. Également connue sous le nom de « maladie du légionnaire », elle est à déclaration obligatoire en France, en Belgique et au Canada[1]. Son incidence en France est de 1 540 cas en 2010 selon l'institut de veille sanitaire[2], en augmentation de 71 % sur les chiffres de 2009. Agent causal[modifier | modifier le code] MASS 05/09/12 Généralités sur la maladie : questions-réponses. Qu’est ce qu’une légionellose ?

MASS 05/09/12 Généralités sur la maladie : questions-réponses

La légionellose est une infection respiratoire provoquée par des bactéries du genre Legionella. Elle a été reconnue pour la première fois en 1976 à l’occasion d’une épidémie survenue à Philadelphie lors d’un congrès d’anciens combattants de l’armée des USA, d’où le nom de "maladie du légionnaire". La légionellose et les bactéries Legionella font l’objet de nombreux travaux épidémiologiques et de recherche présentés à l’occasion de la 7ème conférence internationale sur les légionelles, réunie pour la première fois en France, à Paris à l’Institut Pasteur du 13 au 17 octobre 2009. Pour aller plus loin, consulter :