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| author name = | | author name = | ||
| author affiliation = US Dept of Health & Human Services, Centers for Disease Control & Prevention (CDC) | | author affiliation = US Dept of Health & Human Services, Centers for Disease Control & Prevention (CDC) | ||
| addressee name = Poole J | | addressee name = Poole J | ||
| addressee affiliation = NRC/NRR/DORL/LPWB | | addressee affiliation = NRC/NRR/DORL/LPWB | ||
| docket = 05000391 | | docket = 05000391 | ||
| license number = | | license number = | ||
| contact person = Poole J | | contact person = Poole J | ||
| document type = - No Document Type Applies | | document type = - No Document Type Applies | ||
| page count = 3 | | page count = 3 | ||
}} | }} | ||
=Text= | |||
{{#Wiki_filter:Patient Facts l CDC Legionella Page 1 of 3 CDC Home About CDC Press Room A-Z Index Contact Us CDC en Espanol Search: | |||
Legionellosis Resource Site (Legionnaires' Disease and Pontiac Fever) | |||
Quick Links Home > Patient Facts Email this page Home Printer-friendly version Top 10 - for Clinicians Patient Facts: Learn More about Patient Fact Sheet Legionnaires' disease Contact CDC Health Dept. FAQs English and Spanish (800) CDC-INFO CSTE Statement (800) 232-4636 What is Legionnaires' disease? TTY: (888) 232-6348 ELITE Program FAX: (770) 488-4760 Email: cdcinfo@cdc.gov Legionnaires' disease (LEE-juh-nares) is caused by a type of bacteria called Legionella. The bacteria got its name in 1976, when many people who went to a Philadelphia convention of the American Legion suffered from an outbreak of this disease, a type of pneumonia (lung infection). Although this type of bacteria was around before1976, more illness from Legionnaires' disease is being detected now. This is because we are now looking for this disease whenever a patient has pneumonia. | |||
Each year, between 8,000 and 18,000 people are hospitalized with Legionnaires' disease in the U.S. However, many infections are not diagnosed or reported, so this number may be higher. | |||
More illness is usually found in the summer and early fall, but it can happen any time of year. | |||
What are the symptoms of Legionnaires' disease? | |||
Legionnaires' disease can have symptoms like many other forms of pneumonia, so it can be hard to diagnose at first. Signs of the disease can include: a high fever, chills, and a cough. | |||
Some people may also suffer from muscle aches and headaches. Chest X-rays are needed to find the pneumonia caused by the bacteria, and other tests can be done on sputum (phlegm), as well as blood or urine to find evidence of the bacteria in the body. | |||
These symptoms usually begin 2 to 14 days after being exposed to the bacteria. | |||
A milder infection caused by the same type of Legionella bacteria is called Pontiac Fever . The symptoms of Pontiac Fever usually last for 2 to 5 days and may also include fever, headaches, and muscle aches; however, there is no pneumonia. Symptoms go away on their own without treatment and without causing further problems. | |||
Pontiac Fever and Legionnaires' disease may also be called "Legionellosis" (LEE-juh-nuh-low-sis) separately or together. | |||
How serious is it? What is the treatment? | |||
Legionnaires' disease can be very serious and can cause death in up to 5% to 30% of cases. Most cases can be treated successfully with antibiotics [drugs that kill bacteria in the body], | |||
and healthy people usually recover from infection. | |||
Where do Legionella bacteria come from? | |||
The Legionella bacteria are found naturally in the environment, usually in water. The bacteria grow best in warm water, like the kind found in hot tubs, cooling towers, hot water tanks, large http://www.cdc.gov/legionella/patient_facts.htm 3/16/2012 | |||
Patient Facts l CDC Legionella Page 2 of 3 plumbing systems, or parts of the air-conditioning systems of large buildings. They do not seem to grow in car or window air-conditioners. | |||
How do people get Legionnaires' disease? | |||
People get Legionnaires' disease when they breathe in a mist or vapor (small droplets of water in the air) that has been contaminated with the bacteria. One example might be from breathing in the steam from a whirlpool spa that has not been properly cleaned and disinfected. | |||
The bacteria are NOT spread from one person to another person. | |||
Outbreaks are when two or more people become ill in the same place at about the same time, such as patients in hospitals. | |||
Hospital buildings have complex water systems, and many people in hospitals already have illnesses that increase their risk for Legionella infection. | |||
Other outbreaks have been linked to aerosol sources in the community, or with cruise ships and hotels, with the most likely sources being whirlpool spas, cooling towers (air-conditioning units from large buildings), and water used for drinking and bathing. | |||
Who gets this disease? | |||
People most at risk of getting sick from the bacteria are older people (usually 50 years of age or older), as well as people who are current or former smokers, or those who have a chronic lung disease (like emphysema). | |||
People who have weak immune systems from diseases like cancer, diabetes, or kidney failure are also more likely to get sick from Legionella bacteria. People who take drugs to suppress (weaken) the immune system (like after a transplant operation or chemotherapy) are also at higher risk. | |||
What should I do if I think I was exposed to Legionella bacteria? | |||
Most people exposed to the bacteria do not become ill. If you have reason to believe you were exposed to the bacteria, talk to your doctor or local health department. Be sure to mention if you have traveled in the last two weeks. | |||
A person diagnosed with Legionnaires' disease in the workplace is not a threat to others who share office space or other areas with him or her. However, if you believe that there your workplace was the source of the person's illness, contact your local health department. | |||
How is Legionnaires disease diagnosed? | |||
Most people with Legionnaires disease will have pneumonia (lung infection) since the Legionella bacteria grow and thrive in the lungs. Pneumonia is confirmed either by chest x-ray or clinical diagnosis. Several laboratory tests can be used to detect the Legionella bacteria within the body. The most commonly used laboratory test for diagnosis is the urinary antigen test, which detects Legionella bacteria from a urine specimen, or sample. If the patient has pneumonia and the test is positive, then the patient is considered to have Legionnaires disease. Additionally, if the Legionella bacteria are cultured (isolated and grown on a special media) from a lung biopsy specimen, respiratory secretions, or various other sites, the diagnosis of Legionnaires disease is also considered confirmed. Finally, paired sera (blood specimens) that show a specific increase in antibody levels when drawn shortly after illness and several weeks following recovery, can also be used to confirm the diagnosis. | |||
http://www.cdc.gov/legionella/patient_facts.htm 3/16/2012 | |||
Patient Facts l CDC Legionella Page 3 of 3 Back to top Page Last Modified: June 1, 2011 Content Source: National Center for Immunization and Respiratory Diseases Home Policies and Regulations Disclaimer e-Government FOIA Contact Us Centers for Disease Control and Prevention, 1600 Clifton Rd, Atlanta, GA 30333, U.S.A Tel: (404) 639-3311 / Public Inquiries: (404) 639-3534 / (800) 311-3435 Department of Health and Human Services http://www.cdc.gov/legionella/patient_facts.htm 3/16/2012}} | |||
Latest revision as of 23:59, 11 November 2019
| ML12221A296 | |
| Person / Time | |
|---|---|
| Site: | Watts Bar  |
| Issue date: | 06/01/2011 |
| From: | US Dept of Health & Human Services, Centers for Disease Control |
| To: | Justin Poole Watts Bar Special Projects Branch |
| Poole J | |
| References | |
| Download: ML12221A296 (3) | |
Text
Patient Facts l CDC Legionella Page 1 of 3 CDC Home About CDC Press Room A-Z Index Contact Us CDC en Espanol Search:
Legionellosis Resource Site (Legionnaires' Disease and Pontiac Fever)
Quick Links Home > Patient Facts Email this page Home Printer-friendly version Top 10 - for Clinicians Patient Facts: Learn More about Patient Fact Sheet Legionnaires' disease Contact CDC Health Dept. FAQs English and Spanish (800) CDC-INFO CSTE Statement (800) 232-4636 What is Legionnaires' disease? TTY: (888) 232-6348 ELITE Program FAX: (770) 488-4760 Email: cdcinfo@cdc.gov Legionnaires' disease (LEE-juh-nares) is caused by a type of bacteria called Legionella. The bacteria got its name in 1976, when many people who went to a Philadelphia convention of the American Legion suffered from an outbreak of this disease, a type of pneumonia (lung infection). Although this type of bacteria was around before1976, more illness from Legionnaires' disease is being detected now. This is because we are now looking for this disease whenever a patient has pneumonia.
Each year, between 8,000 and 18,000 people are hospitalized with Legionnaires' disease in the U.S. However, many infections are not diagnosed or reported, so this number may be higher.
More illness is usually found in the summer and early fall, but it can happen any time of year.
What are the symptoms of Legionnaires' disease?
Legionnaires' disease can have symptoms like many other forms of pneumonia, so it can be hard to diagnose at first. Signs of the disease can include: a high fever, chills, and a cough.
Some people may also suffer from muscle aches and headaches. Chest X-rays are needed to find the pneumonia caused by the bacteria, and other tests can be done on sputum (phlegm), as well as blood or urine to find evidence of the bacteria in the body.
These symptoms usually begin 2 to 14 days after being exposed to the bacteria.
A milder infection caused by the same type of Legionella bacteria is called Pontiac Fever . The symptoms of Pontiac Fever usually last for 2 to 5 days and may also include fever, headaches, and muscle aches; however, there is no pneumonia. Symptoms go away on their own without treatment and without causing further problems.
Pontiac Fever and Legionnaires' disease may also be called "Legionellosis" (LEE-juh-nuh-low-sis) separately or together.
How serious is it? What is the treatment?
Legionnaires' disease can be very serious and can cause death in up to 5% to 30% of cases. Most cases can be treated successfully with antibiotics [drugs that kill bacteria in the body],
and healthy people usually recover from infection.
Where do Legionella bacteria come from?
The Legionella bacteria are found naturally in the environment, usually in water. The bacteria grow best in warm water, like the kind found in hot tubs, cooling towers, hot water tanks, large http://www.cdc.gov/legionella/patient_facts.htm 3/16/2012
Patient Facts l CDC Legionella Page 2 of 3 plumbing systems, or parts of the air-conditioning systems of large buildings. They do not seem to grow in car or window air-conditioners.
How do people get Legionnaires' disease?
People get Legionnaires' disease when they breathe in a mist or vapor (small droplets of water in the air) that has been contaminated with the bacteria. One example might be from breathing in the steam from a whirlpool spa that has not been properly cleaned and disinfected.
The bacteria are NOT spread from one person to another person.
Outbreaks are when two or more people become ill in the same place at about the same time, such as patients in hospitals.
Hospital buildings have complex water systems, and many people in hospitals already have illnesses that increase their risk for Legionella infection.
Other outbreaks have been linked to aerosol sources in the community, or with cruise ships and hotels, with the most likely sources being whirlpool spas, cooling towers (air-conditioning units from large buildings), and water used for drinking and bathing.
Who gets this disease?
People most at risk of getting sick from the bacteria are older people (usually 50 years of age or older), as well as people who are current or former smokers, or those who have a chronic lung disease (like emphysema).
People who have weak immune systems from diseases like cancer, diabetes, or kidney failure are also more likely to get sick from Legionella bacteria. People who take drugs to suppress (weaken) the immune system (like after a transplant operation or chemotherapy) are also at higher risk.
What should I do if I think I was exposed to Legionella bacteria?
Most people exposed to the bacteria do not become ill. If you have reason to believe you were exposed to the bacteria, talk to your doctor or local health department. Be sure to mention if you have traveled in the last two weeks.
A person diagnosed with Legionnaires' disease in the workplace is not a threat to others who share office space or other areas with him or her. However, if you believe that there your workplace was the source of the person's illness, contact your local health department.
How is Legionnaires disease diagnosed?
Most people with Legionnaires disease will have pneumonia (lung infection) since the Legionella bacteria grow and thrive in the lungs. Pneumonia is confirmed either by chest x-ray or clinical diagnosis. Several laboratory tests can be used to detect the Legionella bacteria within the body. The most commonly used laboratory test for diagnosis is the urinary antigen test, which detects Legionella bacteria from a urine specimen, or sample. If the patient has pneumonia and the test is positive, then the patient is considered to have Legionnaires disease. Additionally, if the Legionella bacteria are cultured (isolated and grown on a special media) from a lung biopsy specimen, respiratory secretions, or various other sites, the diagnosis of Legionnaires disease is also considered confirmed. Finally, paired sera (blood specimens) that show a specific increase in antibody levels when drawn shortly after illness and several weeks following recovery, can also be used to confirm the diagnosis.
http://www.cdc.gov/legionella/patient_facts.htm 3/16/2012
Patient Facts l CDC Legionella Page 3 of 3 Back to top Page Last Modified: June 1, 2011 Content Source: National Center for Immunization and Respiratory Diseases Home Policies and Regulations Disclaimer e-Government FOIA Contact Us Centers for Disease Control and Prevention, 1600 Clifton Rd, Atlanta, GA 30333, U.S.A Tel: (404) 639-3311 / Public Inquiries: (404) 639-3534 / (800) 311-3435 Department of Health and Human Services http://www.cdc.gov/legionella/patient_facts.htm 3/16/2012