Prognosis Most infants recover from he acute infection within two weeks however as many as half will have recurrent episodes of cough and wheeze over the next 3-5 years. Rarely, the illness is very severe and results in permanent damage o the airwayPrognosis ◼ Most infants recover from he acute infection within two weeks. However, as many as half will have recurrent episodes of cough and wheeze over the next 3-5 years. Rarely, the illness is very severe and results in permanent damage o the airway