[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. Diagnosis should be made basing on results of clinical manifestations in conjunction with microbiological and serological tests. An inereased serum antibody titers to streptolisin O (antistreptolisin O -ASO) is usually indicative of recent streptococcal infection not active rheumatic fever.