Abstract
Natural centers of tick-borne encephalitis and tick-borne rickettsiosis diseases are distinguished not only by stability and in- creasing level of epidemiological manifestation but also by ability to enlargement of areas. It is found that a contribution of some regions of Russia to the sick rate of tick-borne encephalitis and tick-borne rickettsiosis is changing in time. For tick-borne encephalitis the contribution of East Siberia increases and becomes equal to one of Ural area. For tick-borne rickettsiosis the general contribution of four regions (East Siberia, West Siberia, Ural and Far East) amount to 92% of diseases in country. The greater part of tick-borne rickettsiosis diseases (62,1%) is the contribution of East Siberia because of activi- ty of disease centers of Altai area.
Highlights
Природные очаги клещевого энцефалита (КЭ) и клещевого риккетсиоза (КР) отличаются не только стойкостью и возрастающим уровнем эпидемического проявления, но и способностью к расширению ареалов
Natural centers of tick-borne encephalitis and tick-borne rickettsiosis diseases are distinguished by stability and increasing level of epidemiological manifestation and by ability to enlargement of areas
It is found that a contribution of some regions of Russia to the sick rate of tick-borne encephalitis and tick-borne rickettsiosis is changing in time
Summary
Природные очаги клещевого энцефалита (КЭ) и клещевого риккетсиоза (КР) отличаются не только стойкостью и возрастающим уровнем эпидемического проявления, но и способностью к расширению ареалов. В последующем была установлена зараженность клещей I. persulcatus на других очаговых территориях Сибири: в Омской, Новосибирской, Кемеровской, Иркутской, Читинской областях и др. Методами эпидемиологического анализа определено долевое значение отдельных географических регионов в распределении заболеваемости КЭ и КР: Урала, Западной и Восточной Сибири, Дальнего Востока.
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