Specification of Morbidity Rates among the Population of the Tula Region as Regards Natural-Focal Infectious Diseases

Abstract

Objective of the study was to analyze morbidity rates, structure, and spatial distribution of natural-focal infections in the Tula Region. Based on statistical reports of the Center of Hygiene and Epidemiology in the Tula Region over a period of 1993-2013, it is demonstrated that zoonotic infections that occur in the Tula Region, are hemorrhagic fever with renal syndrome (HFRS), leptospirosis, Ixodidae tick-borne borreliosis, and tularemia in the ratio of 60.2:33.6:5.5:0.7, respectively. An average case rate for HFRS and leptospirosis is 1.3 and 4.9 times higher than the corresponding rates throughout Russia, respectively, while Ixodidae tick-borne borreliosis, and tularemia incidence is, by contrast, 9.2 and 2.1 times lower, than the national average. Dynamics of HFRS morbidity rates and Ixodidae tick-borne borreliosis is marked by a moderate upward trend, while leptospirosis and tularemia incidence levels have an apparent downward trend. The highest HFRS, leptospirosis, and Ixodidae tick-borne borreliosis morbidity is in the northern, north-western and western parts of the Region, situated in broadleaved woodland; and the highest numbers of tularemia cases are registered in two eastern zones.

Keywords

• природно-очаговые инфекционные болезни
• геморрагическая лихорадка с почечным синдромом
• лептоспироз
• туляремия
• иксодовый клещевой боррелиоз
• заболеваемость
• эпидемиология
• natural-focal zoonotic infections
• tick-borne borreliosis
• tularemia
• leptospiroses
• hemorrhagic fever with renal syndrome
• morbidity rates
• epidemiology