[On the sanitary-hygienic state of the drinking water supply facility and the organization of the sanitary and bacteriological control of the water supply of the population of Grozny in recent years].

Information on the state of water supply in Grozny in the time of peace, during the armed conflict of 1994-1996 and at the period of the antiterrorist operation in the year 2000 is presented. In the year 2000 the centralized water supply of the population proved to be completely paralyzed. The quality of water brought to the city and water from the sources of decentralized water supply considerably deviated from the norm by its bacteriological characteristics.

[The effect of the vole subspecies of the plague microbe on the viability of Callopsylla caspia fleas].

When infected with cultures of plague microbe reared at 28 C the experimental fleas showed no reliable differences in the mortality as compared to control ones. By contrast, the infection with agent cultures reared at 37 C as well as the infection on agonizing white mice caused a statistically reliable increase in the mortality in insects of both sexes. In the groups of fleas infected on white mice the most intensive mortality was observed during the first 24 hours after the infectious feeding that, apparently, is connected with the effect of toxins present in the blood of agonizing animals.