SITUATION OF RESISTANCE TO INSECTICIDES OF MAJOR MALARIA VECTORS IN VIETNAM, PERIOD 2012 – 2022

Tóm tắt

Surveys were conducted from 2012 to 2022 with the goal of determining the level of
insecticide resistance of the primary malaria vector in Vietnam in the period 2011 - 2022.
The results showed that An. minimus detected in 1 of 28 study sites (3.57%) was possibly
resistant to alphacypermethrin, 1 of 22 sites (4.55%) was possibly resistant to
lambdacyhalothrin and 1 of 6 sites (16.67%) was possibly resistant to deltamethrin. An.
dirus detected at 3 of 11 sites (27.27%) were possibly resistant to alphacypermethrin and
1 of 9 sites (11.11%) was possible resistant to lambdacyhalothrin. An. epiroticus detected
in 7 of 18 sites (38.89%) were possible resistant and 10 of 18 sites (55.56%) were
resistant to alphacypermethrin, 4 of 16 sites (25.00%) were possible resistant and 11 of 16
sites (44.44%) were resistant to lambdacyhalothrin, 3 of 7 sites (42.86%) were possible
resistant and 2 of 7 sites (28.57%) were resistant to permethrin, with 1 of 9 sites(11.11%)
was possible resistant and 4 of 9 sites (44.44%) were resistant to deltamethrin.