RESUMEN
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. The active foci of small cattle brucellosis as the leading source of human contamination with brucellosis are of major epidemiological importance. There is a trend to the activation of the epidemiological factors associated with the operation of individual-sector stock farms (such as farmers', peasants', rental and cooperative ones for processing agricultural products), which corresponds to the changes emerged in the economic mode of production in agricultural areas.
Asunto(s)
Brucella abortus , Brucella melitensis , Brucelosis Bovina/epidemiología , Brucelosis/epidemiología , Enfermedades de las Ovejas/epidemiología , Enfermedades de los Trabajadores Agrícolas/epidemiología , Animales , Brucelosis/veterinaria , Bovinos , Humanos , Incidencia , Morbilidad/tendencias , Población Rural/estadística & datos numéricos , Federación de Rusia/epidemiología , Ovinos , U.R.S.S./epidemiologíaRESUMEN
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.