Evaluation of permethrin‐impregnated mosquito‐nets against mosquitoes in China

Xu, Jing; Zao, M L; Luo, Xue; Geng, Ranshen; Pan, S. X.; Liu, S Y

doi:10.1111/j.1365-2915.1988.tb00191.x

Cited by 11 publications

(4 citation statements)

References 5 publications

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“…The following reviews were consulted: Abdulla 1995; Bermejo 1992; Carnevale 1991; Cattani 1997; Choi 1995; Curtis 1992; Molyneaux 1994; Rozendaal 1989; Sexton 1994; Voorham 1997; WHO 1989; Xu 1988; Yadav 1997; and Zimmerman 1997.…”

Section: Methodsmentioning

confidence: 99%

“…The following databases were searched using the search terms and strategy described in Appendix 2: Cochrane Infectious Diseases Group Specialized Register (January 2003); Cochrane Central Register of Controlled Trials (CENTRAL), published in the Cochrane Library (Issue 1, 2003); MEDLINE (1966 to October 2003); Embase (1974 to November 2002); and LILACS (Latin American and Caribbean Health Science Information database) (1982 to January 2003).The following foreign language tropical medicine journals were handsearched, covering the period from 1980 to 1997: Bulletin OCEAC , Bulletin de la Société de Pathologie Exotique , Médecine Tropicale , and Revista do Instituto de Medicina Tropical de Sao Paulo .Researchers actively involved in the field of ITNs were contacted and asked about unpublished past or ongoing work.The following agencies, which have funded ITN trials, were contacted: UNDP/World Bank/WHO Special Programme for Research and Training in Tropical Diseases (TDR); International Development Research Centre (IDRC), Canada; the Department for International Development, UK; and the European Union Directorate‐General XII.The following manufacturers of pyrethroids used for treating netting were contacted: AgrEvo (now part of Bayer), Bayer, Cyanamid, Mitsui, Sumitomo, and Zeneca (now part of Syngenta).The following reviews were consulted: Abdulla 1995; Bermejo 1992; Carnevale 1991; Cattani 1997; Choi 1995; Curtis 1992; Molyneaux 1994; Rozendaal 1989; Sexton 1994; Voorham 1997; WHO 1989; Xu 1988; Yadav 1997; and Zimmerman 1997.The following books on the subject of ITNs were consulted: Control of Disease Vectors in the Community (Curtis 1991), Malaria: Waiting for the Vaccine (Targett 1991), and Net Gain, a New Method for Preventing Malaria Deaths (Lengeler 1996). The reference lists of all trials identified by the above methods were consulted.…”

Section: Methodsmentioning

confidence: 99%

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Insecticide-treated nets for preventing malaria

Pryce

Richardson

Lengeler

2018

Cochrane Database of Systematic Reviews

169

127

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Background A previous version of this Cochrane Review identified that insecticide‐treated nets (ITNs) are effective at reducing child mortality, parasite prevalence, and uncomplicated and severe malaria episodes. Insecticide‐treated nets have since become a core intervention for malaria control and have contributed greatly to the dramatic decline in disease incidence and malaria‐related deaths seen since the turn of the millennium. However, this time period has also seen a rise in resistance to pyrethroids (the insecticide used in ITNs), raising questions over whether the evidence from trials conducted before resistance became widespread can be applied to estimate the impact of ITNs on malaria transmission today. Objectives The primary objective of this review was to assess the impact of ITNs on mortality and malaria morbidity, incorporating any evidence published since the previous update into new and existing analyses, and assessing the certainty of the resulting evidence using GRADE. Search methods We searched the Cochrane Infectious Diseases Group Specialized Register, the Cochrane Central Register of Controlled Trials (CENTRAL) published in the Cochrane Library, MEDLINE, Embase, LILACS, the World Health Organization (WHO) International Clinical Trials Registry Platform, ClinicalTrials.gov, and the ISRCTN registry for new trials published since 2004 and up to 18 April 2018. Selection criteria We included individual randomized controlled trials (RCTs) and cluster RCTs comparing bed nets or curtains treated with a synthetic pyrethroid insecticide at a minimum target impregnation dose recommended by the WHO with no nets or untreated nets. Data collection and analysis One review author assessed the identified trials for eligibility and risk of bias, and extracted data. We compared intervention and control data using risk ratios (RRs), rate ratios, and mean differences, and presented all results with their associated 95% confidence intervals (CIs). We assessed the certainty of evidence using the GRADE approach. We drew on evidence from a meta‐analysis of entomological outcomes stratified by insecticide resistance from 2014 to inform the GRADE assessments. Main results Our updated search identified three new trials. A total of 23 trials met the inclusion criteria, enrolling more than 275,793 adults and children. The included studies were conducted between 1987 and 2001. ITN versus no nets Insecticide‐treated nets reduce child mortality from all causes by 17% compared to no nets (rate ratio 0.83, 95% CI 0.77 to 0.89; 5 trials, 200,833 participants, high‐certainty evidence). This corresponds to a saving of 5.6 lives (95% CI 3.6 to 7.6) each year for every 1000 children protected with ITNs. Insecticide‐treated nets also reduce the incidence of uncomplicated episodes of Plasmodium falciparum ...

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Insecticide-treated nets for preventing malaria

Pryce

Richardson

Lengeler

2018

Cochrane Database of Systematic Reviews

169

127

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“…Les insectifuges contenant du DEET (N,N-diéthyl-m-toluamide) (13,14) , les moustiquaires de lit traitées à la perméthrine (6,15) et les vêtement traités à la perméthrine (16) se sont révélés efficaces pour prévenir les piqûres des moustiques du genre Culex. En effet, l'utilisation de moustiquaires de lit traitées a permis à elle seule une réduction considérable des cas d'EJ (6) .…”

Section: Mesures De Protection Individuelleunclassified

Déclaration sur la protection contre l’encéphalite japonaise

2011

RMTC

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Une déclaration d'un comité consultatif (DCC) Comité consultatif de la médecine tropicale et de la médecine des voyages (CCMTMV) * † Déclaration sur la protection contre l'encéphalite japonaise Préambule Le Comité consultatif de la médecine tropicale et de la médecine des voyages (CCMTMV) fournit à l'Agence de la santé publique du Canada (ASPC), de façon continue et en temps utile, des conseils de nature médicale, scientifique et de santé publique concernant les maladies tropicales infectieuses et les risques pour la santé associés aux voyages à l'étranger. L'ASPC reconnaît que les conseils et les recommandations figurant dans cette déclaration reposent sur la pratique médicale et les connaissances scientifiques les plus à jour, et les diffuse dans le but d'informer les voyageurs ainsi que les professionnels de la santé qui sont appelés à leur prodiguer des soins. Les personnes qui administrent ou utilisent des médicaments, des vaccins ou d'autres produits devraient bien connaître le contenu des monographies de produit ou des autres normes ou modes d'emploi approuvés. Les recommandations relatives à l'usage des produits et les autres renseignements présentés ici peuvent différer de ceux qui figurent dans la monographie ou toute autre norme ou instruction approuvée et pertinente établie par les fabricants autorisés. Rappelons que l'approbation demandée par les fabricants pour leurs produits, avec démonstration de leur innocuité et de leur efficacité à l'appui, ne s'applique qu'aux utilisations conformes à la monographie ou autre norme ou mode d'emploi approuvé.

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“…However, due to limitations in the methodologies used, the results of such studies have only given rough estimates of insecticide concentrations. Bioassays of susceptible mosquitoes on treated bednets can be used to obtain an indication of biological activity of ITNs, using a correlation between the mortality rates in test mosquitoes and exposure time (Beach et al, 1993;Jawara et al, 1998;Jinjiang et al, 1988;Lindsay et al, 1991aLindsay et al, , 1993Maxwell et al, 1999). However, this method is not particularly sensitive and requires access to susceptible live mosquitoes, a requirement beyond most ITN programmes.…”

Section: Introductionmentioning

confidence: 99%

Field evaluation of a recombinant glutathione S-transferase-based pyrethroid quantification assay

Enayati¹,

Lengeler²,

Erlanger³

et al. 2005

Transactions of the Royal Society of Tropical Medicine and Hygi

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Summary A recombinant glutathione S-transferase (GST)-based pyrethroid quantification assay was field-tested in Ifakara, Tanzania. Initial laboratory tests suggested that all reagents used in the assay should be sufficiently stable for field use, provided that domestic refrigeration facilities were available. Insecticideimpregnated bednets were collected from a region where a social marketing programme was in progress. A total of 100 bednets were collected and the assay plus standard HPLC analysis was performed on the residues extracted from four replicate areas of each net. Insecticide residue estimations for assays performed on white and pale green bednet samples were accurate when compared with residue analysis by HPLC. However, for dark green or blue bednets, there was no correlation between the GST-based assay and HPLC pyrethroid quantification results. The assay failure with the dark coloured nets was caused by the extraction of the dyes along with the insecticide, which subsequently interfered with the GST assay. When the same samples were analysed by HPLC, the dyes were separated from the insecticide by reverse phase column chromatography and hence did not affect the results.

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Evaluation of permethrin‐impregnated mosquito‐nets against mosquitoes in China

Cited by 11 publications

References 5 publications

Insecticide-treated nets for preventing malaria

Insecticide-treated nets for preventing malaria

Déclaration sur la protection contre l’encéphalite japonaise

Field evaluation of a recombinant glutathione S-transferase-based pyrethroid quantification assay

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