Nghiên cứu này được tiến hành nhằm đánh giá độ nhạy cảm của véc tơ sốt xuất huyết Dengue dựa trên kỹ thuật định lượng enzyme liên quan đến tính kháng hóa chất diệt côn trùng tại 3 tỉnh Tây Ninh, Đồng Nai và Bến Tre. | Vietnam Journal of Community Medicine Vol. 64 Special Issue 2023 255-261 INSTITUTE OF COMMUNITY HEALTH EVALUATING SUSCEPTIBILITY OF AEDES TO INSECTICIDE USED IN THE DENGUE FEVER CONTROL PROGRAM BY MEASURING ENZYMATIC ACTIVITY METHOD Huynh Kha Thao Hien1 Le Thanh Dong1 Nguyen Thi Hong Nhung1 Duong Phuoc An2 1 Institute of Malarialogy-Parasitology-Entomology Ho Chi Minh City - 685 Tran Hung Dao 1 ward 5 district Ho Chi Minh City Vietnam 2 University of Medicine and Pharmacy at HCMC - 217 Hong Bang 11 ward 5 district Ho Chi Minh City Vietnam Received 04 01 2023 Revised 06 02 2023 Accepted 01 03 2023 ABSTRACT Background Dengue is emerging as a serious public health. The Aedes aegypti and Aedes albopictus is the primary vector for dengue. Climate changes and the using of insecticide in agriculture make increasing insecticide resistance in Aedes populations . Objectives This study was conducted to evaluate the sensitivity of Dengue hemorrhagic fever vectors based on enzyme quantification techniques related to insecticide resistance in Tay Ninh Dong Nai and Ben Tre provinces. Methods The larvae collected in research sites were transferred to the insectarum and fed into adult mosquities called F1 generation . Susceptibility test was conducted on adult mosquitoes F1 generation using paper impregnated with Deltamethrine or Permethrin Malathion 5 and Propoxur. The mosquitoes alived after susceptibility tests were used to quantify activity of Esterase Monooxygenase va GST. WHO CDS CPC MAL . Results The results showed that 03 mosquito populations at the study sites were all resistant or gain resistace to Pyrethroid group Deltamethrin and Permethrin . Both of Tay Ninh and Ben Tre mosquito populations resistant to pyrethroid chemicals. But most of them are susceptible to Malathion and Propoxur. Compared to the susceptibility species all of the mosquito populations increase the enzyme activity against insecticides. Keywords Aedes aegypti Aedes albopictus .
