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. Track Legionellosis activity and outbreaks specific to Arizona.
Open Web AppLegionellosis 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 Arizona. 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 Arizona o en su condado especÃfico.
Para alertas oficiales de salud del estado, ubicaciones de vacunación y orientación de salud pública especÃfica de Arizona, visite el sitio web del departamento de salud de su estado.
Ya sea que viva en Arizona, viaje allà o tenga familia en el estado, comprender la Legionellosis prevención es esencial. Siga estas medidas de prevención basadas en evidencia:
Si experimenta sÃntomas de Legionellosis en Arizona, contacte a su proveedor de atención médica de inmediato. El diagnóstico y tratamiento tempranos mejoran significativamente los resultados.
SÃntomas de emergencia: Si experimenta sÃntomas graves, dificultad para respirar o signos de deshidratación, llame al 911 o vaya a la sala de emergencias más cercana.
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: 2026-06-29
No confirmed cases reported in Arizona yet. Here are the latest Legionellosis reports from our global surveillance network.
This event envelope contains reports on Legionnaires' diseases cases, clusters and outbreaks in the UK. *Source: BEACON* - [View Full Report](https://beaconbio.org/en/event/?eventid=c28ef0cd-53bf-4ec5-875b-e450267fa3e1)
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)
Paula Wethington is a digital producer at CBS Detroit. She previously held digital content roles at NEWSnet, Gannett/USA Today network and The Monroe News in Michigan. She is a graduate of the University of South Carolina. Water testing has detected what authorities called "low …
The wider risk to public health is said to be low as the disease is not usually passed from person to person. Specialists from Britain's Health Security Agency (UKHSA) are investigating a cluster of Legionnaires' disease cases linked to north and southwest London. The public heal…
An unexpected increase in cases of Legionnaires' disease in parts of north-west and south-west London is being investigated by The UK Health Security Agency (UKHSA). Specialists are trying to find out if the cases are linked and to establish the possible source of the disease. …
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…
Tim Fang is a digital producer at CBS Bay Area. A Bay Area native, Tim has been a part of the CBS Bay Area newsroom for more than two decades and joined the digital staff in 2006. A hospital in Santa Clara County is working to find the source of contamination that led to several…
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 Arizona 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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