Asthma Fact Sheet

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What is asthma? In many people, asthma appears to be an allergic reaction to substances commonly breathed in through the air, such as animal dander, pollen, or dust mite and cockroach waste products. The catch-all name for these substances, allergens, refers to anything that provokes an allergic reaction. Some people have a genetic predisposition to react to certain allergens.

When these people breathe in the allergen, the immune system goes into high gear as if fighting off a harmful parasite. The system produces a molecule called immunoglobulin E (IgE), one of a class of defensive molecules termed antibodies. The IgE antibody is central to the allergic reaction. For example, it causes mast cells, a type of specialized defensive cell, to release chemical 'weapons' into the airways. The airways then become inflamed and constricted, leading to coughing, wheezing, and difficulty breathing -- an asthma attack.

Without treatment, such as inhaled corticosteriods to reduce the inflammation, asthma attacks can be deadly. The overall death rate for asthma, however, is low. - NIAID

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Asthma Fact Sheet

Home - American Lung Association site
TAKE ACTION:Send the Framework Convention on Tobacco Control to the Senate for Ratification (May 11, 2004) Health Effects of Ozone and Particle Pollution. The American Lung Association State of the Air: 2004

Breaking the Mold: Asthma Fact Sheet
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Asthma: A Concern for Minority Populations Fact Sheet
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Epidemiology of Asthma Fact Sheet
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ASTHMA FACT SHEET
ASTHMA FACT SHEET. Fast Facts on Asthma: •. More than 20.3 million Americans are estimated to have asthma and more than a third of them (7.7 million) are children under the age of 18 •

IAQ Fact Sheet: Asthma
What Is Asthma? According to the American Lung Association, asthma is the seventh-ranked chronic health condition in the United States and the leading chronic illness of children. ... During an asthma episode, tightening of the smooth muscles ... person suffering from an asthma attack has a sensation ...

Home - American Lung Association site
... For Kids With Asthma, 8 to 12 year olds experience the excitement and fun of a week long co-ed summer camp ... Get Involved | Quit Smoking | Asthma & Allergy | Your Lungs ...

asthma fact sheet
Facts about asthma. ... Asthma Fact Sheet. What is Asthma? Asthma is a chronic condition where the lungs become inflamed ... Asthma is the leading cause of school absenteeism and pediatric hospital admission ...

NHLBI, NAEPP, Asthma Statistics
... Data Fact Sheet. Asthma Statistics. Asthma ranks among the most common chronic conditions in the United States ... NAEPP) developed this Data Fact Sheet on Asthma Statistics to assist in ...

asthma fact sheet
... Miramichi Regional Health Authority Community Asthma Care Centre Fact Sheet ... and 5% of adults have active asthma (take medication for asthma or have experienced symptoms in the past ...

About Asthma
Allergy, Asthma & Immunology is an information and news service for patients, parents of patients, purchasers of group health programs, the news media, and others interested in the allergic ... Asthma. Asthma affects more than 10 million Americans and is ... each year on health care for asthma. Although its exact ... What is asthma? Asthma is a respiratory condition characterized ...

Fact Sheet: Asthma
Division of Health. Bureau of Environmental Health & Safety. BEHS Fact Sheet. Asthma ... BEHS Fact Sheet. Asthma. Asthma is a chronic, potentially life-threatening, disease characterized by ... Lung Blood Institute. Data Fact Sheet – Asthma. http://www.nhlbi.nih.gov ...

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