[Manifestations of Streptococcus infection resulting from various serologic groups of streptococcus].

44 autopsy cases (from 1985 to 1990) are studied out of which in 38 cases the diseases were produced by streptococcus of group A. In 18 cases there was a pharyngeal or extra-pharyngeal generalized streptococcus infection (scarlet fever). Moderately pronounced local damage, mainly pneumonia, were found in 20 cases. In 3 other cases the disease was produced by group B streptococcus, in 2 cases by streptococcus D and in 1 case by streptococcus of G group. Group A streptococcus was encountered mainly in children older than 6 months (31 cases), B and D at an earlier age (particularly B streptococcus). Morphologically, there were no essential differences connected with different streptococcus groups. The infection in most cases was correlated with a respiratory diseases, more frequently with influenza or respiratory-syncytial infection this favouring more grave course of streptococcus infection.