[Results of the bacteriological work of the specialized epidemic brigade of the Stavropol Research Institute for Plaque Control].

The experience of use of efforts and resources by the bacteriological section of the specialized antiepidemic brigade of the Stavropol Research Institute for Plague Control in the Chechen Republic during the period of 1999-2000 under the conditions of the emergency situation, formed as the consequence of carrying out the antiterrorist operation, is summarized. The work load falling of the bacteriological section in different shifts, the structure of bacteriological investigations, as well as some problems arising in the process of work, were analyzed. The experience showed the necessity of the complete accommodation of the bacteriological laboratory in specialized motor-vehicle modules having all necessary equipment for investigation works, disinfection, sterilization.

[The surface membrane potential in a fluctuating medium].

Fluctuations of the surface membrane potential due to adsorbtion and desorbtion of ions when environmental fluctuations generate a fluctuation in the number of adsorbtion sites were investigated. The correlation functions of surface charge density, surface potential and the spectral density of surface potential fluctuations were calculated. The characteristic features of these fluctuations were determined.

[Vibriolysis in cholera and NAG-vibrios].

The causative agent of classic cholera, vibrios of the El-Tor biotype and NAG-vibrios produced on agar plates a substance which lysed killed indicator strains of the vibrios and the Gram negative bacilli, but was indifferent against the Gram positive bacilli. The action of the vibriolysins varied extending from the causative agent of classic cholera in the direction of saprophytes.