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Objective. The incidence rate of tick-borne encephalitis in Perm Krai annually exceeds that in the Russian Federation by several times, and therefore, the aim of the study was to reveal the clinical and epidemiological characteristics of the course of infection. Materials and methods. A continuous retrospective clinical and laboratory survey including 314 adult patients admitted to the Perm Regional Clinical Infectious Diseases Hospital in 2014-2019 was carried out. Results. The following features were revealed: the disease is diagnosed more often in persons over 41 years old, infection mainly occurs when visiting the forest and park areas. That is why, it is necessary to reduce the number of infection carriers. In every fifth patient, the disease is characterized by the development of an inapparent form, as well as mixed infection in association with pathogens circulating in ticks in the territory of Western Ural ticks. Conclusions. In 45.9 % of cases, the infection has a moderate and severe course, involving not only meninges but also the brain substances into the pathological process that requires early diagnosis and timely adequate therapy.

Relevance. Currently, researchers pay close attention to the study of chronic diseases that have a direct or indirect impact on the state of the patient’s dental status. It is known that chronic inflammatory diseases of the oral organs are, often simultaneously, permanent foci of infection that affect the state of other systems and organs. The general list of such diseases includes: chronic gingivitis, chronic generalized periodontitis, glossitis, gingivostomatitis.Aim. The aim of the study was to study the effectiveness of complex conservative therapy, including natural therapeutic factors of Crimea, in patients with chronic inflammatory diseases of the oral organs, occurring against the background of somatic pathology.Materials and methods. The objects of the study were periodontal tissues in 70 people with chronic generalized periodontitis (CGP) and gingivostomatitis, occurring against the background of gastrointestinal (GI) diseases.Results. The results obtained indicate that complex treatment with local application of hydrotherapy named “PhytoBiol” and thermal Saka mineral water (in a dilution of 1:4), combined with periodontal dressings according to the recipe proposed by us, cause persistent remission of these diseases, contribute to the improvement of periodontal tissues and oral mucosa. Thus, complex treatment of inflammatory diseases of periodontal tissues in patients in the main group (n = 35) led to long-term remission in 82.33% of cases, while in the control group the result was 69.5% (at p < 0.05).Conclusions. The positive results, which were obtained, give grounds to recommend the proposed complex of treatment and prevention of exacerbations of this chronic disease for use in practical health care.

The current study was carried out to study the influence of light and heavy lanthanides on the physiological process of Crimean-Sagyz/ Krim-saghyz (dandelion - Taraxacum hybernum). Lanthanide belongs to the group of light or heavy; infiltration of dandelion (Crimean saghyz) seeds with light and heavy lanthanides solutions increased the germination energy by 26%. The differences in the influence of light (cerium) and heavy (lutetium) were manifested in the quantum efficiency change of the photosystem 2 (PS II). Treatment of leaves with high concentrations (100 µM) led to a decrease of Y (II), moreover, under the influence of light lanthanide, the decrease was greater by 21%. It is assumed that the effect of the used lanthanides on the dandelion photosynthetic apparatus is multidirectional. Cerium influenced the PS II antenna complex, and lutetium influenced the reaction centers. A 10-fold decrease in the concentration did not change the nature of cerium action, except that Y (II) was restored already on the second day after treatment. The effect of lutetium became noticeable only by the 8th day after treatment when Y (II) became higher than that of untreated plants. Thus, the results of the study suggested that in dandelion leaves, lanthanides with a concentration of 10 µM increased the quantum efficiency of PS II in contrast to cerium.

Objective. An important role in the prevention of diseases, the causative agents of which are transmitted by ixodic ticks (tick-borne encephalitis, ixodic tick-borne borreliosis, human granulocytic anaplasmosis, human monocytic erlichiosis) is assigned to non-specific measures. To prevent infection by all pathogens of these infections at the same time, nonspecific preventive measures are of paramount importance. They include the extermination of hungry ticks on the vegetation of relatively small areas of natural biotopes, forest parks, health institutions, recreational areas, summer cottages or gardens; individual protection of the population from ticks and awareness-raising work. Materials and methods. The data of official statistics and materials of long-term observation of epidemic process were analyzed. Results. Despite the fact that since 2016 according to official data, there is observed a phase of decreased activity of the epidemic process of tick-borne infections, statistical analysis shows that in the forthcoming years an activation of epidemic situation is expected. Conclusions. In order to prevent tick attacks, specialists of medical organizations, departments of Rospotrebnadzor of the Russian Federation should intensify sanitary and educational work on non-specific protection of the population. In addition to standard activities, it is important to organize schools, courses for the public, schoolchildren, tourists and other population groups for the prevention of tick-borne infections, including the development of skills for correct tick removal using the Tick Removal Trainer and an algorithm for emergency measures in specific situation.