Latin American Poster Session
Adult Control
The use of insecticides is the main tool for controlling insect vectors of diseases of public health interest, such as dengue, chikungunya, and Zika. For this reason, it is necessary to monitor the susceptibility of Aedes aegypti populations to the insecticides used for vector control. The main objective of the study was to establish the state of susceptibility to insecticides in Ae. aegypti in the department of Cordoba. The study was carried out in fourteen municipalities of the department that recorded the highest incidence of dengue from 2015 to 2020. The insecticides permethrin, deltamethrin, and lambda-cyhalothrin were evaluated using the methodologies of the World Health Organization (WHO) and the Centers for Disease Control and Prevention (CDC). The larvicide temephos was assessed with the WHO methodology, and the organophosphates malathion, fenitrothion, and pirimiphos-methyl were evaluated with the CDC-impregnated bottle methodology. All populations were resistant to the three pyrethroids evaluated and to fenitrothion. Resistance to pirimiphos-methyl was also observed in 3 of the 14 populations; meanwhile, all populations showed susceptibility to temephos and malathion. Finally, the kdr mutations F1534C, V1016I, and V410L were identified with variations in allelic and genotypic frequencies in the analyzed populations.