Archive for the ‘Legionnaire’s Disease’ Category
Lithuania: An emergency has been declared in the capital city of Vilnius after Legionella bacteria were found in the water systems of several apartment buildings.Wednesday, March 15th, 2017
Legionellosis is bacterial respiratory disease caused by Legionella that can present as either Legionnaires’ disease or Pontiac fever. Legionnaires’ disease is a common cause of severe pneumonia requiring hospitalization, while Pontiac fever generally resolves on its own.
The following table summarizes key clinical differences between Legionnaires’ disease and Pontiac fever.
|Clinical features||Pneumonia, cough, fever|
|Pathogenesis||Replication of organism|
|Incubation period||2 to 10* days after exposure|
|Percent of persons who become ill,
when exposed to the source of an outbreak
|Less than 5%|
|Isolation of organism||Possible|
Case-fatality rate: 10%, approximately 30% for healthcare-associated cases
Minnesota health officials have confirmed 3 new cases of Legionnaires’ disease linked to the ongoing Hopkins outbreak, bringing the total number to 20, including one death.Friday, September 30th, 2016
- Legionella can cause Legionnaires’ disease or Pontiac fever, collectively known as legionellosis.
- The bacterium was named after an outbreak in 1976, when many people who went to a Philadelphia convention of the American Legion got sick with pneumonia (lung infection).
- About 5,000 cases of Legionnaires’ disease are now reported each year in the United States. 
- About one out of every 10 people who get sick from Legionnaires’ disease will die. 
- People can get Legionnaires’ disease or Pontiac fever when they breathe in a mist (small droplets of water in the air) that has been contaminated with Legionella.
- In general, Legionnaires’ disease is not spread from one person to another. However, this may be possible in rare cases. 
- Legionella is found naturally in fresh water environments, like lakes and streams, but can become a health concern in human-made water systems.
- Keeping Legionella out of water systems in buildings is key to preventing infection.
Legionnaires’ disease is deadly for about 10% of people who get it.
9 in 10. CDC investigations show almost all outbreaks were caused by problems preventable with more effective water management.
CDC investigated the first outbreak of Legionnaires’ disease, a serious lung infection (pneumonia), in 1976. An increasing number of people in the US are getting this disease, which is caused by breathing in small water droplets contaminated with Legionella germs. About 5,000 people are diagnosed with Legionnaires’ disease and there are at least 20 outbreaks reported each year. Most identified outbreaks are in buildings with large water systems, such as hotels, long-term care facilities, and hospitals. Legionella grows best in building water systems that are not well maintained. Building owners and managers should adopt newly published standards that promote Legionella water management programs, which are ways to reduce the risk of this germ in building water systems.