Symptoms to look for in a newborn include salty-tasting skin secretions, inability to gain weight (and in fact may lose weight), and slow growth. Bowel symptoms include diarrhea, severe constipation creating a stomach ache, bloating and gas, nausea, appetite loss and foul smelling stools. Respiratory symptoms may include coughing, nasal congestion (nasal polyps), pneumonia, shortness of breath, fever and phlegm.
Symptoms that may occur later in life include clubbed fingers, pancreatitis (inflammation of the pancreas) and possible infertility in males (loss of the vas deferens due to mucus build up).
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