As of October 2017, the global database comprised almost 30 000 records, including results from bioassays to measure phenotypic resistance, and biochemical and molecular tests for resistance mechanisms. The current report presents an overview of data on malaria vector resistance for 2010 to 2016. It... aims to provide the baseline for subsequent status updates and to identify any temporal trends. An online mapping tool called Malaria Threats Map allows further interactive exploration of available data.
more
2nd edition. WHO's recommendation has not changed: the standard WHO susceptibility tests should remain a primary method by which resistance is detected. However, it was considered necessary to update the existing resistance-monitoring procedures to also highlight the need for operationally meaningfu...l data.
Two new assays were included in this expanded version: an intensity assay and a synergist assay.
more
The use of safe and efficacious insecticides against the adult and larval populations of mosquito vectors is one of the most effective ways to rapidly interrupt transmission of Zika virus, as well as other viruses transmitted by Aedes mosquitoes such as chikungunya and dengue.
L’ampleur de la résistance aux insecticides chez les vecteurs du paludisme met en péril l’efficacité des programmes de lutte anti-vectorielle. Si cette résistance n’est pas atténuée, le taux de morbidité palustre va s’accroître, entraînant une hausse significative des coûts liés ... la prévention de la maladie. Ce nouveau cadre est un guide pour l’élaboration d’un plan national de suivi et de gestion de la résistance aux insecticides chez les vecteurs du paludisme, lequel doit considéré comme partie intégrante du plan stratégique national de lutte contre le paludisme.
more
Effective malaria prevention is threatened by widespread and increasing vector insecticide resistance. Failure to mitigate this threat will likely result in an increased burden of disease, with significant cost implications. This new framework provides support for the development of a national insec...ticide resistance monitoring and management plan as part of a national malaria strategic plan.
more
Au Sénégal, la LAV repose principalement sur deux interventions majeures: la promotion de l’utilisation des Moustiquaires Imprégnées d’Insecticide à longue durée d’Action (MILDA) et l’Aspersion Intra Domiciliaire d’insecticide à effet rémanent (AID). Même si ces deux interventions... restent efficaces dans la plupart des zones, la résistance croissante des vecteurs aux insecticides appelle d’urgence à une action coordonnée. Dès lors, la gestion de la résistance devient un impératif pour maintenir l’efficacité des stratégies de LAV. C’est dans ce cadre que le PNLP a élaboré ce présent Plan National de Gestion de la Résistance des Vecteurs aux Insecticides (PNGRVI) pour la période 2017-2020.
more
Preferred product characteristics” (PPCs) are key tools to incentivize and guide the development of urgently needed health products. The PPC published here describes the characteristics of new types of insecticide-treated nets (ITNs) to control malaria transmission in areas with insecticide-resist...ant mosquito populations. The document was developed to address the public health need caused by the evolution and spread of insecticide resistance, particularly to pyrethroids. Such resistance threatens the effectiveness of the current standard of malaria vector control in many countries, namely pyrethroid-only long-lasting insecticidal nets (LLINs).
more
The WHO susceptibility test kit has been extensively used for monitoring of insecticide resistance in disease vectors for many years. Over the years, users have reported issues with these kits and potential improvements to WHO in an ad-hoc manner. To systematically determine whether the reported iss...ues were widespread and to collate potential improvements to the kit, a survey of users was put online from 30 June to 15 October 2023. The results from this survey are reported in this report.
more
This WHO video presents updated recommendations on two new types of insecticide-treated nets (ITNs) designed to combat mosquito resistance: nets containing either pyrethroid and chlorfenapyr or pyrethroid and pyriproxyfen. The video highlights the improved effectiveness of these nets compared to sta...ndard nets and emphasises the importance of their universal use in malaria-endemic areas, particularly for pregnant women and young children where supplies are limited.
more
Discover approaches and advances in our fight against the malaria mosquito using Insecticide Resistance Management (IRM).
On this three-week course, you’ll examine the rise of insecticide resistant mosquitoes and the resultant need for a new approach in the world’s fight against malaria transmi...ttance.
more
Le présent document rassemble une série de recommandations émises par l’Organisation mondiale de la Santé (OMS) et l’Organisation panaméricaine de la Santé (OPS) pour aider les professionnels chargés des programmes de lutte antivectorielle en Amérique latine et dans les Caraïbes aux niv...eaux national, infranational et local à mettre à jour et prendre des decisions à base factuelle qui touchent les mesures de lutte antivectorielle les mieux adaptées à chaque situation particulière. La GIV peut être utilisée lorsque la cible est la surveillance et la lutte ou l’élimination (en function de chaque situation) des MTV et peut contribuer à réduire le développement de la résistance aux insecticides au moyen de l’utilisation rationnelle de ces produits. Le présent document contient les instructions nécessaires pour mener à bien le mandat établi par l’OPS en 2008 (résolution CD48.R8, document CD48/13), en particulier, il complémente une série de guides de l’OMS publiés en 2012
more
This document compiles the recommendations made by the World Health Organization (WHO) and the Pan American Health Organization (PAHO) to help professionals in charge of vector control programs in Latin America and the Caribbean at the national, subnational, and local level update their knowledge in... order to make evidence-based decisions on the most appropriate control measures for each specific situation. IVM can be used for surveillance and control or for elimination of VBDs and can help reduce the development of insecticide resistance through the rational use of these products. This document provides instructions for fulfillment of the 2008 PAHO mandate set forth in CD 48/13 (Integrated Vector Management).
more
The conditionality of this recommendation is largely driven by the current higher unit cost of pyrethroid-PBO ITNs compared
to pyrethroid-only LLINs and therefore the uncertainty of their cost-effectiveness. Furthermore, as PBO is less wash-resistant
than pyrethroids, its bioavailability declines ...faster over the three-year estimated life of an ITN; therefore, the added impact of
pyrethroid-PBO ITNs over that of pyrethroid-only LLINs may decline over time. The evidence comes from two sites in
eastern Africa with pyrethroid resistance and not from other geographies where transmission levels and vector characteristics
may vary. PBO acts by inhibiting certain metabolic enzymes, primarily oxidases, and so are likely to provide greater protection
than pyrethroid-only LLINs where mosquitoes display mono-oxygenase-based insecticide resistance mechanisms.
more
The document WHA70.16, adopted during the 70th World Health Assembly, outlines a global strategy for an integrated response to vector-borne diseases. It emphasizes the urgent need to strengthen national and global capacities for vector control amid rising threats such as insecticide resistance, clim...ate change, and the spread of vectors like mosquitoes. Member States are urged to align their national strategies with WHO’s integrated approach, improve surveillance, promote research, and ensure cross-sector and cross-border collaboration. The WHO Director-General is requested to provide technical support, promote innovation, and monitor progress, with regular updates to future World Health Assemblies.
more
The WHO Malaria Threats Map is an interactive online platform that showcases the latest global data on four critical biological threats to effective malaria control and elimination: mosquito insecticide resistance, Plasmodium falciparum hrp2/3 gene deletions, antimalarial drug resistance, and the ...spread of invasive vector species. Designed for public health professionals and researchers, the map allows users to explore and filter data regionally, track emerging resistance patterns, and view visual trends. Its purpose is to inform strategies for surveillance, guide policy-making, and support efforts to eliminate malaria, particularly by anticipating and responding to biological challenges that could undermine control programs.
more
Each year, WHO’s World malaria report provides a comprehensive and up-to-date assessment of trends in malaria control and elimination across the globe. This year’s report includes, for the first time, a dedicated chapter focused on the intersection between climate change and malaria. As describe...d in the report, climate change is one of many threats to the global response to malaria. Millions of people continue to miss out on the services they need to prevent, detect, and treat the disease. Conflict and humanitarian crises, resource constraints and biological challenges such as drug and insecticide resistance also continue to hamper progress.
more
This toolkit for integrated vector management (IVM) is designed to help national and regional programme managers coordinate across sectors to design and run large IVM programmes.
The toolkit provides the technical detail required to plan, implement, monitor and evaluate an IVM approach. IVM can be ...used when the aim is to control or eliminate vector-borne diseases and can also contribute to insecticide resistance management. This toolkit provides information on where vector-borne diseases are endemic and what interventions should be used, presenting case studies on IVM as well as relevant guidance documents for reference.
The diseases that are the focus of this toolkit are malaria, lymphatic filariasis, dengue, leishmaniasis, onchocerciasis, human African trypanosomiasis and schistosomiasis. It also includes information on other viral diseases (Rift Valley fever, West Nile fever, Chikungunya, yellow fever) and trachoma. If other vector-borne diseases appear in a country or area, vector control with an IVM approach should be adopted, as per national priorities.
more