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  1. Bronchiolitis - Symptoms and causes - Mayo Clinic

    May 4, 2024 · Bronchiolitis is a common lung infection in young children and infants. It causes swelling and irritation and a buildup of mucus in the small airways of the lung.

  2. Bronchiolitis - Johns Hopkins Medicine

    Bronchiolitis is an inflammation of the bronchioles (small passages in the lungs) usually caused by a viral infection. The disease usually affects children under the age of 2, with a peak age of 3 …

  3. Bronchiolitis Causes & Symptoms - Cleveland Clinic

    Bronchiolitis is a viral infection that targets the small airways of a child’s lungs. It causes wheezing, coughing and a slight fever. It’s most common during colder months. Contact your …

  4. Bronchiolitis - Wikipedia

    Bronchiolitis typically presents in children under two years old and is characterized by symptoms of a respiratory illness, sometimes referral to as a viral prodrome.

  5. Bronchiolitis: Symptoms, Causes, Diagnosis, Treatment - WebMD

    Apr 29, 2025 · Bronchiolitis, a lung infection, is a common illness among infants that causes difficulties breathing. Most cases are mild and can be treated at home.

  6. Bronchiolitis and Lower Respiratory Infections in Children

    Bronchiolitis is an infection of the lower respiratory tract that usually affects infants. There is swelling in the smaller airways or bronchioles of the lung, which causes obstruction of air in …

  7. Bronchiolitis Symptoms, Diagnosis and Treatment - American Lung Association

    The symptoms of bronchiolitis are similar to those of a common cold but may worsen with time. Though diagnosis can be tricky, certain signs can warn you that your child needs to see a doctor.

  8. Bronchiolitis Symptoms, Treatments, RSV, vs. Bronchitis

    Oct 30, 2024 · Bronchiolitis is a viral infection of the bronchioles in the lung that usually affects infants and children under the age of two. In infants, RSV is the most common cause of …

  9. Bronchiolitis in Babies: Symptoms, Treatment & Prevention

    Bronchiolitis is a common respiratory infection among infants. One of its symptoms is trouble breathing, which can be scary. Read on for more information about bronchiolitis, its causes, …

  10. Bronchiolitis: What Is It, Transmission, Symptoms, Treatment

    Sep 23, 2025 · Bronchiolitis is an infection of the small airways of the lungs, called bronchioles, that can commonly affect babies and young children under the age of two. Incidence is higher …