[Plague in Rostov Province (its history, epidemiology, epizootiology, control measures and prevention)]. / Chuma v Rostovskoi oblasti (istoriia, épidemiologiia, épizootologiia, mery bor'by i profilaktiki).

In the first third of the twentieth century, the overgrazing of cattle in the eastern districts of the modern Rostov Province yielded deserts in the places of virgin steppes and created favourable conditions for the enlargement of an area for the small souslik, a main carrier of plague in the natural focus of the northwestern Caspian Sea Region. On the above territories, this gave rise to a new natural focus of plague. Its liquidation required many-year goal-oriented efforts of large collective bodies of plaguologists and great material costs. The settlements of small sousliks exist on the above territories today and the activation of a natural focus of plague in the adjacent Kalmykia generate a need for enhancing plague epidemiological surveillance in the eastern districts of the Rostov Province today.

[A natural focus of icterohemorrhagic leptospirosis in the floodplain of the lower Don and means for its eradication]. / Prirodnyi ochag ikterogemorragicheskogo leptospiroza v poime Nizhnego Dona i puti ego ozdorovleniia.

An active natural focus of icterohemorrhagic leptospirosis has been detected in the area of fish-breeding ponds in Rostov Province, where the intensive epizootic among the population of Norway rats is observed the whole year round (574 animals have been examined, 56 cultures have been isolated). The epizootic process reaches its highest intensity in autumn (the proportion of infected animals exceeds 50%). This natural focus in the area of fish-breeding ponds is epidemiologically dangerous. The limitation of its infectious potential is possible by means of poisoned baits.