Clinical and immunological features of obstructive bronchitis in children with respiratory tract infections

Bronchoobstructive syndrome (BOS) is registered at least once according to various authors in 10-50% of children under the age of 6 years. The recurrent course of bronchial obstruction syndrome is noted according to some data in 25% of cases of BOS. The most difficult in terms of differential diagnosis are the frequent relapses of acute obstructive bronchitis and asthma attacks in young children against the background of acute respiratory infection (ARI). The difficulty of differential diagnosis of these diseases is due to a similar clinical picture, objective examination data, X-ray examination results and age restriction of the use of additional methods of diagnosis verification. Thus, BA can hide for a long time under the mask of acute obstructive bronchitis, which recurs against the background of ARI.