To Kill or to Repel Mosquitoes? Exploring Two Strategies for Protecting Humans and Reducing Vector-Borne Disease Risks by Using Pyrethroids as Spatial Repellents

被引:2
作者
Moreno-Gomez, M. [1 ]
Miranda, M. A. [2 ]
Bueno-Mari, R. [3 ,4 ]
机构
[1] Henkel Iberica SA, Res & Dev R&D, Insect Control Dept, Carrer Llacuna 22,1-1, Barcelona 08005, Spain
[2] Univ Balearic Islands, Dept Biol, Appl Zool & Anim Conservat Res Grp, Cra Valldemossa Km 7-5, Palma De Mallorca 07122, Spain
[3] Lokimica SA, Dept Invest & Desarrollo I D, Ronda Auguste & Louis Lumiere 23,Nave 10, Valencia 46980, Spain
[4] Univ Valencia, Fac Farm, Dept Farm & Tecnol Farmaceut & Parasitol, Area Parasitol, Avda Vicent Andres Estelles S-N, Valencia 46100, Spain
来源
PATHOGENS | 2021年 / 10卷 / 09期
关键词
Aedes albopictus; field testing; killing; landing rate count; protection; spatial repellent; transfluthrin; PERSONAL PROTECTION; AEDES-ALBOPICTUS; INSECTICIDES; EFFICACY; BEHAVIOR; MALARIA; TRIAL;
D O I
10.3390/pathogens10091171
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Although control efforts are improving, vector-borne diseases remain a global public health challenge. There is a need to shift vector control paradigms while developing new products and programmes. The importance of modifying vector behaviour has been recognised for decades but has received limited attention from the public health community. This study aims to: (1) explore how the use of spatial repellents at sublethal doses could promote public health worldwide; (2) propose new methods for evaluating insecticides for use by the general public; and (3) identify key issues to address before spatial repellents can be adopted as complementary vector control tools. Two field experiments were performed to assess the effects of an insecticidal compound, the pyrethroid transfluthrin, on Aedes albopictus mosquitoes. The first examined levels of human protection, and the second looked at mosquito knockdown and mortality. For the same transfluthrin dose and application method, the percent protection remained high (>80%) at 5 h even though mosquito mortality had declined to zero at 1 h. This result underscores that it matters which evaluation parameters are chosen. If the overarching goal is to decrease health risks, sublethal doses could be useful as they protect human hosts even when mosquito mortality is null.
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页数:18
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