[Streptococcal infection and antistreptolisine O].

Acute pharyngitis and tonsillitis are one of the most freguent illnesses. Most of episodes of the sore throat are coused by viral agents.Groupe A beta - hemolitic streptococcus still dominantes emong bacterial pathogens in upper respiratory tract infections and their late sequelae like rheumatic ferer determines the necessity of intensive therapy.

[The occurrence of anticardiolipin antibodies bound in circulating immunological complexes in sera of patients suffering from juvenile lupus erythematosus and juvenile idiopathic arthritis].

Background: The presence of antiphospholipid antibodies (APA), especially anticardiolipin antibodies (ACA), antibodies against beta2-glikoprotein I and lupus anticoagulant leads to thrombotic disorders. The pathogenetic role of APA in children is not exactly explained. The frequency of occurrence of APA and antiphospholipid syndrom in children is 2 to 3 times lower than in adults.

[Connective tissue diseases in childhood].

The author presented the present classification, clinical course, diagnostic and prognostic problems and own remarks in juvenile systemic lupus erythematosus and juvenile dermatomyositis.

[Spinal pain in school children].

The investigation was carried out to determine the prevalence of back pain among the population of the school-children aged from 6 to 17 yrs. 3386 children from primary Warsaw schools randomly chosen, were investigated according to the questionnaire based on the diagnostic criteria of juvenile spondyloarthropathies (JSA). Total prevalence of spinal pain was 10.

[Classification criteria and clinical picture of juvenile idiopathic arthritis].

In recent years a new nomenclature and classification childhood chronic arthritis has been introduced. The terms juvenile chronic arthritis and juvenile rheumatoid arthritis--have been replaced by juvenile idiopathic arthritis (JIA). The term JIA was adapted to indicate a childhood onset (before the 16th.