ENVIRONMENTAL HEALTH AND LEISHMANIASIS: ENTOMOLOGICAL AND ECOEPIDEMIOLOGICAL PARAMETERS OF THE STATE OF RIO GRANDE DO NORTE
leishmaniasis, phlebotomine sand flies, environmental health, climate change, geoprocessing.
Socioeconomic development immersed in the current capitalist logic of unsustainable production causes negative impacts on the environment, promoting degradation and changes in environmental health, which are related to the emergence and reemergence of vector-borne zoonoses, such as leishmaniasis. Environmental health is defined as the interaction between environmental aspects, both natural and anthropogenically altered, and human health, with a focus on improving the quality of human life in a context of sustainability. In Rio Grande do Norte (RN), entomological studies of phlebotomine sandflies, vectors of Leishmania, began in the 1950s; however, most studies have focused on endemic areas in the metropolitan region of Natal and Mossoro, as well as in Sao Miguel. Therefore, locations with sporadic or vulnerable cases were not sampled, reflecting a lack of knowledge about the sandflies fauna. This in mind, and considering the context of environmental health, we sought to develop a study involving different dimensions that permeate the potential for transmission and circulation of Leishmania species, detecting the presence of adult vector sand flies in a silent and vulnerable area, as well as analyzing the eco-epidemiological relationships involving leishmaniasis in RN. Our partial results indicate that black populations, those living in urban areas or with low levels of education are the most affected by visceral leishmaniasis (VL) in RN. In addition, VL cases are correlated with precipitation levels and the development of dense and sparse urban areas. Literature surveys and captures of sand flies resulted in a fauna of 30 species, of which nine are new records for RN; In addition, we also identified natural infections of Evandromyia walkeri and Psychodopygus wellcomei by Leishmania infantum and the formation of four clusters of historical incidence of VL and American cutaneous leishmaniasis in RN. Finally, this set of studies will provide information and evidence about the occurrence of leishmaniasis, enabling the development of efficient surveillance and response plans, with the aim of controlling the transmission of Leishmania in Rio Grande do Norte State.