An investigation on permethrin-treated military uniforms against diurnal mosquitoes under field conditions

Mehdi Khoobdel, Morteza Akbari, Ali Ashraf Aivazi, Seyed Hassan Moosa-Kazemi, Hemn Yousefi, Mohamad Reza Akbari, Keshavarzi Davood, Mohammad Moradi


Background: Military forces are exposed to mosquito bites because of their duties. In addition to the nuisance caused by mosquito bites, they are the vector of some vector-borne diseases in many countries of the world. Impregnation of military uniforms with permethrin is one of the most effective methods of protecting military personnel. The purpose of this study was to evaluate the effect of permethrin-impregnated uniforms against diurnal mosquitoes under field conditions.

Methods:  In this study, one of the most common uniforms used in the Iranian military was treated by permethrin (0.125 mg. permethrin ai/cm2) and evaluated against the natural population of day-biting mosquitoes, in the rural area with Eight participants, three of them put on the treated uniforms and the other one of them wore the untreated uniforms and Four officers were also appointed as collectors.

Results: The average number of bites in those who wore untreated uniforms (control) was 1.8/min/person (107.8/hr), while it was 0.16 (9.83/hr) for treated uniforms. The protection of treated uniforms was about 91%. The knockdown rate for Culex and Aedes mosquitoes was 95.92% and 94.44%, respectively. The mortality rate in Culex was 98.59% and 98.61% in Aedes mosquitoes when exposed to treated uniforms.

Conclusion: In this study, military uniforms impregnated with permethrin showed significant protection against the bites of Culex and Aedes mosquitoes. This intervention can be used to protect military personnel from the bites of Culex and Aedes these mosquitoes and to reduce the diseases transmitted by these mosquitoes.

Keywords: Permethrin; Military uniforms; Impregnation; Mosquitoes

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