Cystic fibrosis presenting with persistent pneumonia --a case study of a 3-month-old adopted baby.

The diagnostic criteria for cystic fibrosis require the presence of 1 or more typical clinical features, a family history of cystic fibrosis, or a positive newborn screening test, plus laboratory evidence of the cystic fibrosis transmembrane conductance regulator dysfunction. However the present case was an adopted baby with persistent pneumonia since birth, his health had been deteriorating rapidly. He was becoming very listless, malnourished, and the whole family had lost all hope of the baby's survival.