RSV is a common virus that infects just about every child by 2 years of age. Mucus collects in these airways, which makes it difficult for air to flow freely in and out of the lungs.īronchiolitis is usually caused by the respiratory syncytial virus (RSV). The infection makes the bronchioles swollen and irritated. Appears slow moving, weak or very tired.īronchiolitis happens when a virus infects the bronchioles, which are the smallest airways in the lungs.Makes grunting noises with each breath.Can't breathe easily and the ribs seem to suck inward when breathing in.Breathes very fast - in infants this can be more than 60 breaths a minute - with short, shallow breaths.Refuses to drink enough, or breathes too fast to eat or drink.Struggles to breathe and can't speak or cry.Has blue or gray skin, lips and fingernails due to low oxygen levels.Get medical attention right away if your child has any of these symptoms: This is especially important if your child is younger than 12 weeks old or has other risk factors for bronchiolitis - for example, being born too early, also called premature, or having a heart condition. If symptoms become serious, call your child's health care provider. Many infants with bronchiolitis also have an ear infection called otitis media. Later, your child may have a week or more of working harder than usual to breathe, which may include wheezing. For the first few days, the symptoms of bronchiolitis are much like a cold:
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