[Modern principles of prevention of human transmitted infections].

According to information about ecology of agents of parasitic diseases with lousy-flea mechanism of contamination, mite natural diseases and experience of battle with them, we can make a conclusion: elimination of spongers in their natural environment, lousies and fleas by washing and disinfection is not effective. Alternative is implementation of insectoacaricides of new class, based on permethrins. These insectoacaricides are secure for environment and very effective towards arthopods.

[Louse-borne typhus potential and new technologies in prediction of epidemic louse-borne typhus outburst].

Features of louse-borne typhus in Russia in the middle of 20th century are considered. Study of the infection source, blood serum in patient after epidemic louse-borne typhus (ELBT) and agent (louse) was performed on territory with high morbidity of pediculosis and ELBT in the years of 2nd world war. New materials of seroimmunological examinations are represented.

[The epidemiological significance of human lice in relation to the characteristics of their parasitism].

Epidemiological significance of clothes and head louse is determined first of all by the type of "parasite-host" connection. Clothes louse has an immediate contact with man only during bloodsucking, it dwells in clothes, consumes big portions of blood and has great productivity. Temperature factor is very important for Pediculus corporis.