[The automatization of the control over the processes determining the risk of HIV-infection spreading among servicemen].

The possibilities of the control over the processes determining the HIV-infection spreading risk are considered. In the view of that the automated system which enables to evaluate risk factors predetermining the appearance of new infection cases was proposed. These factors are systematised in a multilevel database.

[The methodological aspects in enhancing the efficacy of the epidemiological surveillance of HIV infection].

Using a systems approach, the authors examined the main principles underlying an expert-based system for epidemiological surveillance over HIV infection. The principle objective is to control the processes which precede the occurrence of new infected cases and further spread of HIV infection. Accordingly, the system should address the following: epidemiological diagnosis and prediction of HIV incidence and spread, development of optimal preventive anti-epidemiological measures, research into how the infection spread.

[Study of the combined action of an antibiotic and an immunostimulator using mathematical modeling].

A mathematical model of antibiotic and immunostimulator (IMS) combined effect on various elements of the immune system and general state of patients with infectious diseases is described. The model was constructed as a system including 6 usual differential equations of the 1st order. With the use of this model and a computer many diverse variants of infection development under conditions of treatment with IMS at the background of antibiotic therapy were modeled.