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Bronchiolitis typically affects infants and children younger than two years, principally during the autumn and winter. [15] It is the leading cause of hospital admission for respiratory disease among infants in the United States and accounts for one out of every 13 primary care visits. [ 8 ]
However, according to the Centers for Disease Control and Prevention, an estimated 58,000 to 80,000 children under the age of 5 are hospitalized each year due to complications caused by an RSV ...
The infection causes mild, cold-like symptoms but it can lead to severe lung infections like pneumonia and infant bronchiolitis and is especially dangerous to toddlers under two or with other ...
But the virus can cause complications in vulnerable populations, including infants, children under 2, people over 50, those with weakened immune systems and those with heart or lung disease ...
Worldwide, RSV is the leading cause of bronchiolitis and pneumonia in infants and children under the age of 5. The risk of serious infection is highest during the first 6 months of life. Of those infected with RSV, 2–3% will develop bronchiolitis, necessitating hospitalization. [70]
However, certain groups face a higher risk of severe complications: Pneumonia: HMPV can cause viral pneumonia, requiring hospitalization and intensive care in severe cases. Bronchiolitis: Infants and young children often experience inflammation and blockage of airways, leading to difficulty breathing and wheezing.
Preschool children with adenovirus colds tend to present with a nasal congestion, runny nose and abdominal pain. [2] There may be a harsh barking cough. [2] It is frequently associated with a fever and a sore throat. [2] Up to one in five infants with bronchiolitis will have adenovirus infection, which can be severe. [2]
These symptoms generally get worse over weeks to months. [4] It is not related to cryptogenic organizing pneumonia, previously known as bronchiolitis obliterans organizing pneumonia. [4] Causes include breathing in toxic fumes, respiratory infections, connective tissue disorder or complications following a bone marrow or heart-lung transplant. [1]