[The epidemiological characteristics of brucellosis in the region of the northern Caucasus].

At present, the Northern Caucus Region is the most unfavourable brucellosis area of the Russian Federation where 43.5% of the total Russian incidence of this infection was recorded in 1993. Over the past years (1988-1993) there was a highly unsteady-state improvement of the epidemiological situation, however, the rates of human morbidity with this infection greatly lag behind those in Russia.

[Associations of the soil amoeba Hartmannella rhysodes with the bacterial causative agents of plague and pseudotuberculosis in an experiment].

Some aspects of relationships between soil ameba and the causative agents of plague and pseudotuberculosis, capable of forming natural associations, are considered. Ameba can phagocytose bacteria causing plague and pseudotuberculosis. Cases of the preservation of individual bacterial cells at the stationary phase and in precysts of amebae have been registered.