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Respiratory tract infections in young children are linked to an increased risk of asthma and worse lung function in children who had upper respiratory infections like colds, sinusitis, laryngitis, tonsillitis, pharyngitis and otitis.
Children with respiratory tract infections have increased risk of developing asthma. Children who had suffered from lower respiratory tract infections, such as bronchitis, bronchiolitis, pneumonia and general chest infections can develop asthma.
Lung function is an objective measure of the function of the lungs and airways. Lung function could be affected without leading to symptoms, or it could lead to asthma or wheezing.
A child could be diagnosed with lung function unaffected, upper respiratory tract infections were not associated with worse lung function in children. However, lower respiratory tract infections at any age are link with worse lung. Lung function in childhood is related with lung function in adulthood.
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