Aim. Chracteristic of number and distribution of mosquitoes Ae. aegypti and Ae. albopictus in the Republic of Abkhazia and a risk assessment of virus Zika spread. Materials and methods. The accounting of mosquitoes number was made by the method «on the observer» in 20 minutes at the 70 nature landscapes points in april-oktober 2016. Results. The Black sea coast of the Republic of Abkhazia has favorable ecological conditions for the mosquitoes ingrowth of Ae. aegypti and Ae. albopictus. At 2016 the mosquitoes Ae. albopictus having vector competence to spread a Zika virus, has been revealed in the open stations in the territory from Ochamchirsky district to border with the Russian Federation. Their number is correlated with the air temperature in the region. The control of efficiency of the insecticidal works showed that in the open stations Ae. albopictus were not found within 3 - 7 days after the disinsection actions. However, their number of recovered as a result of settling from nearby natural biotopes. Conclusion. The risk of local Zika virus transmission has estimated as a low. Considering the gravity of the disease caused by the Zika virus carrying out a wider complex of the control methods of the mosquitoes number in areas of their dwelling, especially on the epidemiologically significant objects is necessary. The most effective of the population protection action is riddance of the reproduction mosquitoes places and sanitation of territory.

Work purpose. The analysis of epidemiological features of outbreak of a shigellosis in Tkuarchal in the Republic Abkhazia in 2013 and efficiency of actions for its elimination. Results. The waterway of transfer of the activator with formation of a large number of the centers of an infection, including family was realized. It is established that an causal factor of a disease is Shigella sonnei I, II. Differences in a plasmid profile of the allocated strain (existence of two additional plasmids - pBS512 S. boydii and pO26-Vir E. coli H30) that, apparently, provided the raised strain pathogenicity, and, respectively, allowed to cause large flash of a shigellosis in Tkuarchal in the Republic Abkhazia. conclusion. The anti-epidemic actions for localization and elimination of epidemic outbreak directed on elimination of a water factor of transfer of the activator with the subsequent rupture of a contact and household way of distribution of an infection provided gradual decrease in incidence and elimination of outbreak.