Resumo

FERREIRA, María; GALLEGO, German  e  GALEANO, Javier. Presence of Aedes aegypti, vector of dengue virus and its susceptibility to chemical control, in areas under influence of precarious human settlements in San Antonio municipality, Central- Paraguay. Rep. cient. FACEN [online]. 2022, vol.13, n.2, pp.160-174. ISSN 2222-145X.  https://doi.org/doi.org/10.18004/rcfacen.2022.13.2.160.

WHO has reported that vector-borne diseases-VTDs account for more than 17% of infectious diseases worldwide, including dengue. The present study is addressed in the Action Plan on entomology and vector control 2018-2023 of the WHO and PAHO, regarding the presence of Aedes aegypti as vector dengue virus-DEN and its susceptibility to chemical control, in areas under the influence of precarious human settlements in the municipality of San Antonio, Central-Paraguay, highly urbanized. Field sampling through ovitraps generated data from Ae aegypti hatcheries in areas under the influence of precarious human settlements, with larval infestation index between 8.6% and 9.5%, exceeding the tolerable value < 1% between 2018 and 2019. Areas of the presence of Ae aegypti in San Antonio and neighboring districts were determined by DIVAGIS modeling, in relation to the 19 bioclimatic variables. The more determinant variables were the average of daily temperature, the isothermality, the average of temperature of the coldest month and precipitation of the driest month; all of them ensure the presence and development of Ae. aegypti. The resulting maps were complemented with the presence of human settlements and industries, as anthropic activity, inserted in watersheds and important waterways for the installation of the vector at home and peridomicile. The evaluation of the susceptibility/resistance to larvicide Temefos, of wild populations of Ae. aegypti, collected in San Antonio, by bioassays under controlled laboratory conditions, revealed that the circulating populations of this vector, are susceptible- RR<3 -to this larvicide, highly used by vector control programs of the Ministry of Public Health and Social Welfare. All of the above is framed in the sustainable development goals, which stipulate that, by 2030, neglected tropical diseases and other vector-transmissible diseases must be ended, more specifically in SDG 3-Health and Wellness. It is also circumscribed in SDG 11, which deals with sustainable cities and communities, because it investigates aspects of increasing urbanization in the study area, with several challenges, such as unplanned urban expansion, without basic services, making cities more vulnerable to disease. The work developed provides a basis for future studies on citizen empowerment and the development of good governance in the face of the urban health problem that constitutes the CSP.

Palavras-chave : Aedes aegypti; Chemical control; San Antonio Central - Paraguay; precarious human settlements.

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