Development conditions and principles for identification of cow's milk protein hypersensitivity in infants.

The authors studied a group of 153 infants presenting pneumonia and/or bronchitis suspected to be immunized to cow's milk proteins (cow's milk allergy). The diagnosis was confirmed in 96 children (62.7%), which is 20.8% of hospitalized infants presenting respiratory tract diseases. Factors influencing the occurrence of family cow's milk intolerance and the type of infant feeding were analyzed thoroughly. Our own principles of diagnosing hypersensitivity to cow's milk proteins, considering the family history suggesting the possibility of cow's milk hypersensitivity, the occurrence of recurrent wheezy bronchitis and symptoms of the gastrointestinal tract were established. The diagnostic usefulness of LMIT with cow's milk allergens was assessed.