Legionellosis is a severe bacterial infection, most commonly presenting as pneumonia (Legionnaires' Disease), caused by *Legionella* bacteria. It is not contagious person-to-person and primarily affects individuals who inhale contaminated water droplets, especially older adults or those with weakened immune systems.
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Legionellosis first gained widespread recognition following a major outbreak in 1976 at an American Legion convention in Philadelphia, Pennsylvania. The causative bacterium, *Legionella pneumophila*, was identified by the CDC shortly after. This event significantly advanced public health understanding of waterborne diseases and the importance of environmental controls in buildings.
Legionellosis is primarily transmitted through the inhalation of small water droplets (aerosols) containing *Legionella* bacteria. These contaminated aerosols are generated from man-made water systems such as cooling towers, hot tubs, showers, decorative fountains, and large plumbing systems. It is not known to spread directly from person to person.
PerÃodo de Contagio: Varies by disease
Información del departamento de salud local y orientación de prevención especÃfica del estado
Nuestra vigilancia impulsada por IA monitorea continuamente la actividad de Legionellosis en todo Utah. Rastreamos datos de departamentos de salud estatales, hospitales locales, informes del CDC y más de 50 fuentes de salud globales para proporcionar advertencia temprana de amenazas emergentes.
Reciba notificaciones instantáneas cuando la actividad de Legionellosis aumenta en Utah o en su condado especÃfico.
Para alertas oficiales de salud del estado, ubicaciones de vacunación y orientación de salud pública especÃfica de Utah, visite el sitio web del departamento de salud de su estado.
Ya sea que viva en Utah or are traveling there, knowing the symptoms, timeline, and when to seek care helps you act quickly if exposure occurs.
Seek care if you experience severe dehydration, bloody stools, high fever, or symptoms lasting more than 3 days. Children under 5, adults over 65, and immunocompromised individuals should seek care earlier.
SÃntomas de emergencia: Severe dehydration, inability to keep fluids down for 12 or more hours, or neurological symptoms require emergency care.
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Información confiable de las principales organizaciones de salud
Orientación oficial de los Centros para el Control y la Prevención de Enfermedades de EE. UU.
Ver Recursos del CDC →Vigilancia global de enfermedades y directrices de la Organización Mundial de la Salud
Ver Recursos de la OMS →Últimas investigaciones revisadas por pares y estudios clÃnicos
Ver Investigación →La información sobre enfermedades en Virus Watcher es revisada por nuestro Epidemiólogo Jefe, ex analista principal del CDC para el pronóstico FluSight. Los datos de brotes se agregan de fuentes verificadas incluyendo BEACON, ProMED, OMS, CDC y más de 50 agencias nacionales de salud. Esta información es con fines educativos y no debe reemplazar el asesoramiento médico profesional.
Última revisión: 2026-08-13
No confirmed cases reported in Utah yet. Here are the latest Legionellosis reports from our global surveillance network.
An ongoing cluster of the illness has sickened 23 people. That's not unusual: Most years, 200 to 700 people in the city are diagnosed with the disease. Faced with an outbreak of Legionnaires' disease on Manhattan's Upper East Side, the Mamdani administration said on Tuesday that…
This event envelope contains reports on Legionnaire's disease cases, clusters and outbreaks in Australia. *Source: BEACON* - [View Full Report](https://beaconbio.org/en/event/?eventid=78ef9fa9-8716-4bf8-928b-9d8e425caede)
The second victim was an 88-year-old retired businessman and Air Force veteran who lived on the Upper East Side, his lawyer said. A second person has died in an outbreak of Legionnaires' disease on the Upper East Side of Manhattan, city health officials said. The death, of an 8…
Early antibiotic treatment and proper water management in cooling towers and plumbing can prevent severe illness NEWYou can now listen to Fox News articles! As continues to investigate an outbreak of Legionnaires' disease that has claimed multiple lives and sickened dozens of p…
The New York City Health Department has launched a probe into a concerning cluster of Legionnaires' disease cases along the Upper East Side -- with officials trying to track down the source of the outbreak. Two people have been diagnosed with the potentially fatal pneumonia-like…
ST. LOUIS COUNTY, Mo. - An elementary school in the Ritenour School District will remain closed after a teacher there disclosed that she had been hospitalized for Legionnaires' disease during the school year. In separate statements to staff and families in the district and Marvi…
The audio version of this article is generated by AI-based technology. Mispronunciations can occur. We are working with our partners to continually review and improve the results. Hamilton Public Health is investigating several confirmed cases of legionellosis in the city's east…
This event envelope contains reports on legionellosis in Canada. *Source: BEACON* - [View Full Report](https://beaconbio.org/en/event/?eventid=96e46254-3133-48d5-a5b0-dab89f0a8ae8)
Reciba notificaciones instantáneas cuando la actividad de Legionellosis aumenta en Utah o sus destinos de viaje. Rastree más de 200 enfermedades con alertas basadas en ubicación. Utilizado por sistemas de salud, servicios de emergencias médicas, escuelas y viajeros de todo el mundo.
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