Effect of whooping cough in infancy on subsequent lung function and bronchial reactivity.


Thirty-six children younger than 1 yr of age hospitalized for whooping cough approximately 9 yr previously (cases) were compared with 36 control children of the same age and sex. Subjects were sampled from participants in an earlier large field study of the long-term sequelae of whooping cough. Respiratory symptoms were more common in cases, although the… (More)


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