This study is conducted to analyze spatial distribution of tuberculosis (TB) incidence in the Crimean peninsula and is due to the further development of a solution to this issue, since, despite the fact that there is a decrease in the incidence of tuberculosis on the peninsula, the Republic of Crimea remains today one of the disadvantaged regions of our country. According to official statistics, the total incidence of tuberculosis in 2018 was 51 per 100 thousand people. The risk of developing tuberculosis depends on a number of factors — environmental, economic, social and others. In order to show and evaluate the spatial distribution, intensity, localization and concentration of the phenomenon in certain areas an analysis using cartographic and statistical methods is needed. The purpose of the article is, through the processing of statistical and analytical source data of certain time slices, to show on maps the totality of factors that can affect the dynamics of the incidence of tuberculosis and the spread of patients in a specific territory — the Crimean Peninsula, and also to identify the most significant of these factors. The work provides a statistical study of the incidence rates of active tuberculosis in combination with the demographic characteristics of the Crimean Federal District. The quantitative characteristic of these is presented in the form of tables, graphs and cartographic images. The revealed statistical regularities make it possible to see those features of the development of the studied parameters that usually slip away with only one mapping, and to predict the situation for the future.

S19 01The Queen Bee phenomenon in Canadian surgical subspecialties: an evaluation of gender biases in the resident training environment.

Visceral leishmaniasis is a generalized infection of the reticuloendothelial system, it is fatal if left untreated in most cases. Early diagnosis and effective therapy can reduce the risk of disability and mortality. However, in non-endemic areas diagnosis may be delayed or missed. In the article we presented a case report of a child with imported visceral leishmaniasis. The gradual onset of the disease with irregular fever, growing weakness, fatigue, loss of appetite, anemia, cytopenic syndrome required differential diagnosis with oncological diseases. The diagnosis of leishmaniasis was made by microscopy of a bone marrow smear and the detection of leishmania. Recovery occurred after the prolonged course of amphotericin B and supportive treatment.