Bronchiolitis is a common illness of the respiratory tract caused by an infection that affects the tiny airways, called the bronchioles, that lead to the lungs.
Bronchiolitis is usually caused by a viral infection, most commonly respiratory syncytial virus (RSV). RSV infections are responsible for more than half of all cases of bronchiolitis and are most widespread in the winter and early spring. Other viruses associated with bronchiolitis include rhinovirus, influenza (flu), and human metapneumovirus.
The infections that cause bronchiolitis are contagious. The best way to prevent the spread of viruses that can cause bronchiolitis is frequent hand washing. It may help to keep infants away from others who have colds or coughs, and away from cigarette smoke.
Fortunately, most cases of bronchiolitis are mild and require no specific professional treatment. The best treatment for most cases is time to recover and plenty of fluids.
All A to Z dictionary entries are regularly reviewed by KidsHealth medical experts.
|Centers for Disease Control and Prevention (CDC) The CDC (the national public health institute of the United States) promotes health and quality of life by preventing and controlling disease, injury, and disability.|
|American Academy of Pediatrics (AAP) The AAP is committed to the health and well-being of infants, adolescents, and young adults. The website offers news articles and tips on health for families.|
|American Academy of Family Physicians This site, operated by the American Academy of Family Physicians (AAFP), provides information on family physicians and health care, a directory of family physicians, and resources on health conditions.|
|CDC: Flu (Influenza) The CDC's site has up-to-date information on flu outbreaks, immunizations, symptoms, prevention, and more.|
|Bronchopulmonary Dysplasia (BPD) Babies who are born prematurely or who experience respiratory problems shortly after birth are at risk for bronchopulmonary dysplasia (BPD), sometimes called chronic lung disease.|
|Lungs and Respiratory System By the time we're 70 years old, we will have taken at least 600 million breaths. All of this breathing couldn't happen without the respiratory system.|
|Adenovirus Adenoviruses account for about 10% of acute respiratory infections in kids and are a frequent cause of diarrhea.|
|Bronchiolitis Bronchiolitis is a common illness of the respiratory tract caused by an infection that affects tiny airways - the bronchioles - that lead to the lungs.|
|Respiratory Syncytial Virus Respiratory syncytial virus (RSV) is a major cause of respiratory illness in young children. Learn how to recognize the signs and symptoms of this contagious infection.|
|Pneumonia Pneumonia is a lung infection that can be caused by different types of germs, most commonly viruses. Read about the various types of pneumonia.|
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