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Early Virus Raises Asthma Risk in Certain Kids
Infants with a particular gene variant appear more vulnerable after infection
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Asthma Symptoms
Asthma is characterized by inflammation of the bronchial tubes with increased production of sticky secretions inside the tubes. People with asthma experience symptoms when the airways tighten, inflame, or fill with mucus. Common asthma symptoms include:
- Coughing, especially at night
- Wheezing
- Shortness of breath
- Chest tightness, pain, or pressure

