Legionella quick Dig- anon says take your colloidal silver!
This is a list of Legionnaires' disease outbreaks; Legionnaire's is a potentially fatal infectious disease caused by gram negative, aerobic bacteria belonging to the genus Legionella.[1][2] The first reported outbreak was in Philadelphia, Pennsylvania in 1976 during a Legionnaires Convention at the Bellevue-Stratford Hotel.[3]
Almost all natural water sources contain Legionella and their presence should not be taken as an indication of a problem
( Indoor ornamental fountains have been confirmed as a cause of Legionnaires' disease outbreaks, in which submerged lighting as a heat source was attributed to the outbreak in all documented cases.
Legionella bacteria themselves can be inactivated by UV light. However, Legionella bacteria that grow and reproduce in amoebae or that are sheltered in corrosion particles cannot be killed by UV light alone.[citation needed]
Legionella will grow in water at temperatures from 20 to 50 °C (68 to 122 °F). However, the bacteria reproduce at the greatest rate in stagnant water at temperatures of 35 to 46 °C (95 to 115 °F).[citation needed]
Copper-Silver ionization is an effective industrial control and prevention process to eradicate Legionella in potable water distribution systems and cooling towers found in health facilities, hotels, nursing homes and most large buildings.'''
https://en.wikipedia.org/wiki/List_of_Legionnaires%27_disease_outbreaks
Legionnaires’ disease and Pontiac fever outbreaks occur when two or more people are exposed to Legionella in the same place and get sick at about the same time. People can get Legionnaires’ disease or Pontiac fever when they breathe in a mist (small droplets of water in the air) that contains Legionella.
Outbreaks are commonly associated with buildings or structures that have complex water systems, like hotels and resorts, long-term care facilities, hospitals, and cruise ships. The most likely sources of infection include water used for showering, hot tubs, decorative fountains, and cooling towers (structures that contain water and a fan as part of centralized air cooling systems for a building or industrial processes).
Legionnaires’ disease and Pontiac fever outbreaks can be difficult to identify. Sometimes people travel to a common location, are exposed to Legionella, and then return home before becoming sick. State and local health departments take the lead in investigating outbreaks. They also implement control measures to remove Legionella from the water identified as the source of infection. CDC is only involved in outbreak investigations when a health department requests additional assistance. State and local health departments are the best source of information for a specific outbreak.
https://www.cdc.gov/legionella/outbreaks.html
https://www.cdc.gov/legionella/about/history.html
Overview: Legionnaires' disease is a severe form of pneumonia — lung inflammation usually caused by infection. It's caused by a bacterium known as legionella.
Most people catch Legionnaires' disease by inhaling the bacteria from water or soil.
The legionella bacterium also causes Pontiac fever, a milder illness resembling the flu. Pontiac fever usually clears on its own, but untreated Legionnaires' disease can be fatal. Although prompt treatment with antibiotics usually cures Legionnaires' disease, some people continue to have problems after treatment.
https://www.mayoclinic.org/diseases-conditions/legionnaires-disease/symptoms-causes/syc-20351747
Diagnosis
Legionnaires' disease is similar to other types of pneumonia. To help identify the presence of legionella bacteria quickly, your doctor might use a test that checks your urine for legionella antigens — foreign substances that trigger an immune system response. Other tests might include:
Blood and urine tests
Chest X-ray, which doesn't confirm Legionnaires' disease but can show the extent of infection in your lungs
Tests on a sample of your sputum or lung tissue
Treatment
Legionnaires' disease is treated with antibiotics. The sooner therapy is started, the less likely the chance of developing serious complications. In many cases, treatment requires hospitalization. Pontiac fever goes away on its own without treatment and causes no lingering problems.
https://www.mayoclinic.org/diseases-conditions/legionnaires-disease/diagnosis-treatment/drc-20351753