Wash resistance and bio-efficacy of Olyset~? Plus, a long-lasting insecticide-treated mosquito net with synergist against malaria vector, Anopheles stephensi

作     者：Soraya Sheikhi Hassan Vatandoost Mohammad Reza Abai Mansoreh Shayeghi Ahmad Raeisi Morteza Akbari Fatemeh Nikpoor Mohammad Sistanizade Aghdam Akbar Bagheri 

作者机构：Department of Medical Entomology&Vector ControlSchool of Public HealthTehran University of Medical SciencesTehranIran Department of Environmental Chemical Pollutants and PesticidesInstitute for Environmental ResearchTehran University of Medical SciencesTehranIran Department of MalariaCDCMinistry of Health&Medical EducationIran 

出 版 物：《Asian Pacific Journal of Tropical Medicine》 (亚太热带医药杂志（英文版）)

年 卷 期：2017年第10卷第9期

页      面：887-891页

核心收录：

学科分类：1007[医学-药学(可授医学、理学学位)] 1006[医学-中西医结合] 100706[医学-药理学] 1002[医学-临床医学] 100602[医学-中西医结合临床] 10[医学] 

基　　金：part of a MSc dissertation funded supported by Tehran University of Medical Sciences(Grant no.9211263017) 

主　　题：Long-lasting nets Permethrin Wash resistance Residue Anopheles stephensi 

摘      要：Objective: To determine the wash resistance of Olyset~? Plus using World Health Organization Pesticide Evaluation Scheme standard washing procedure and to assess the value of knock down and mortality rates of Anopheles stephensi at different regimens of long lasting insecticide treated nets ***: The study was conducted at the Bioassay Laboratory of Culicidae Insectary,School of Public Health, Tehran University of Medical Sciences, Iran. The net was made of polyester impregnated with permethrin and piperonyl butoxide at a ratio of 2:1. The washing resistance was assessed using Le Chat?soap and a shaker incubator set at a speed of 155 r/min, 30℃ for 10 min. The cone bioassay test was carried out according to World Health Organization recommended guideline with tolerant field strain of female Anopheles stephensi to ***: The knockdown and mortality rates of female mosquitoes exposed to Olyset~? Plus from un-washed nets to 2 washings were 79.7% and 88.8% respectively. Mortality was dropped to zero while active ingredient estimated 0.532 mg/100 cm^2 to 0.481 mg/100 cm^2 after 15 washings. A positive correlation was seen between residues of permethrin on nets, knockdown rate and mortality rate of female Anopheles stephensi exposed to different regimes of washed Olyset~? Plus(r = 0.954, P = 0.001).Conclusions: It is recommended that a preliminary survey conducted on resistance level of Anopheles vectors before the distribution of Olyset~? Plus in malaria endemic communities.