[Use of several parametric characteristics for study of epidemic features of meningococcal infection and bacterial meningitis].

Unlabelled: Continuous surveillance for main indicators of epidemic process of meningococcal infection and etiology of bacterial meningitis. Epidemiologic surveillance was electronically-based and was performed on the basis of specially developed standardized case reporting form. Main parameters of epidemiologic surveillance included 10 indexes.

[Postvaccinal immunity and immunological aspects of Haemophilus influenzae carrier state in children of different age groups after the administration of "Act-HIB" vaccine].

The article deals with H. influenzae (different serotypes) carrier state and immune response before and after the administration of the vaccine "Act-HIB" to children of different age groups. Children aged up to 1 year and over 1 year have been found to differ in the dynamics of carrier state and in the concentration of antibodies of different classes to the antigens of this infective agent, which makes it necessary to carry out their early immunization with a view to ensure their protection from H.

[Diagnostic value of different laboratory methods in the diagnosis of pneumonia caused by Haemophilus influenzae type B].

Comparative analysis of the diagnostic value of different laboratory methods in the diagnosis of H. influenzae b (Hib) pneumonia in children (bacteriological method, latex agglutination, counter immunoelectrophoresis, the passive hemagglutination test and the enzyme immunoassay (EIA) was carried out. EIA proved to be the most informative method for the diagnosing Hib pneumonia.

[The determination of antimeningococcal antibodies in the saliva of healthy people].

The determination of antibodies to the group-specific polysaccharide of group A meningococci (PS-A) in the saliva of 162 healthy persons at different seasons of the year revealed that antimeningococcal antibodies could be detected in all examines. The range of concentrations of antibodies to PS-A varied between 0.1 and 33.