We report the follow-up of 13 infants aged 2.5 to 24 months in whom cystic fibrosis disease presented as respiratory distress. All infants received an intensive treatment. Mean clinical, radiological and microbiological follow-up was 3.1 years. Ten children aged 1.5 to 8.5 years are still alive. One of them presents with serious respiratory failure, with a Shwachman score of 50. The Shwachman score is between 85 and 70 for 8 of 13 and 65 for one. The prognosis of this group did not differ from the one usually observed in the disease. It depends partially on early intensive care management and is not altered by mechanical ventilation.