[A method of preparing antibody erythrocytic diagnostic means for detecting viruses].

It was found possible to use method for preparation of antibody erythrocytic diagnosticums for detection of agents of influenza and arboviral infections. Test systems prepared by the developed method were superior in sensitivity to immunoreagents prepared with previously proposed amidol. Testing of 1387 tick samples collected in various climatic geographical zones of the Republic of Kazakhstan detected arboviral antigens in 4.

[Preparation and study of the efficacy of a toxoplasmic erythrocytic diagnostic agent].

Comparison of various antigenic preparations of Toxoplasma and of the methods for red cell sensitization with these antigens has shown that sensitization with Toxoplasma summary fraction, containing the cytoplasmic and envelope antigens, and rivanol, is the optimal method for preparing an erythrocytic diagnostic agent. A test with such a diagnosticum has proved to be much more effective than the complement fixation test. Though the results of the two tests correlate, this correlation is curvilinear, and therefore it is desirable to use both the tests for the diagnostic investigations.

[Isolation of the virus of Syr-Darya Valley fever].

In the course of studies on the ecological structure of acute febrile diseases in the season of activity of blood-sucking arthropods strains of a virus antigenically related to Sikhote-Alyñ virus were isolated from the blood of a patient and from Ixodid ticks. This paper presents the results of the study on the causative agent and the clinical picture of the disease caused by this virus. The virus was found to be a new one for science; its appurtenance to the family Picornaviridae, genus Cardiovirus, the antigenic group of encephalomyocarditis has been determined.