ArticleMalaria journal2017
A reduction in malaria transmission intensity in Northern Ghana after 7 years of indoor residual spraying.
Article in Malaria journal, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 1 of them a synthesis that pooled it.
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Who cites it
37 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Trends in insecticide resistance in Anopheles mosquitoes (Diptera: Culicidae) in Ghana: a systematic review.Journal of medical entomology · 2025Pooled it
- Warming temperatures reduce lifespan and vectorial capacity of Anopheles mosquitoes in Ghana.Infectious Disease Modelling · 2026Article
- Can dual active ingredient Interceptor® G2 insecticide-treated net (ITN) replace indoor residual spraying (IRS) efficiently? A case study in Sakassou, Côte d'Ivoire.Parasites & vectors · 2026Article
- The dynamics of asymptomatic Plasmodium spp. infections following 10 years of malaria control interventions in Northern Sahelian Ghana.PLoS neglected tropical diseases · 2026Observational
- Feeding and resting behaviours of natural Anopheles gambiae s.l. populations in an area of low malaria transmission in south-western Senegal: A comparative study between mainland and island settings.Parasites & vectors · 2026Article
- Malaria incidence rose following the introduction of neonicotinoid-based IRS in selected districts in northern Ghana: An observational analysis.PLOS global public health · 2026Article
- Spatial temporal distribution ofGigaByte (Hong Kong, China) · 2026Article
- Malaria control in Northern Ghana: a scoping review.Malaria journal · 2025Article
- Entomological impact of three years of clothianidin-based indoor residual spraying in two high malaria endemic districts in Côte d'Ivoire.Malaria journal · 2025Article
- Exploring the metabolic and cuticular mechanisms of increased pyrethroid resistance in Anopheles gambiae S.l populations from Ghana.Scientific reports · 2025Article
- Article
- Impact of a spatial repellent intervention on Anopheles kdr insecticide resistance allele in Sumba, Indonesia.Malaria journal · 2024Article
- Spatial-temporal vector abundance and malaria transmission dynamics in Nchelenge and Lake Mweru islands, a region with a high burden of malaria in northern Zambia.Malaria journal · 2023Article
- Clinical and laboratory presentation of first-time antenatal care visits of pregnant women in Ghana, a hospital-based study.PloS one · 2023Article
- The resting behavior of malaria vectors in different ecological zones of Ghana and its implications for vector control.Parasites & vectors · 2022Article
- Multilevel logistic regression modelling to quantify variation in malaria prevalence in Ethiopia.PloS one · 2022Article
- Indoor residual spraying with a non-pyrethroid insecticide reduces the reservoir ofPLOS global public health · 2022Article
- Criteria for selecting sentinel unit locations in a surveillance system for vector-borne disease: A decision tool.Frontiers in public health · 2022Review
- Variable residual activity of K-Othrine® PolyZone and Actellic® 300 CS in semi-field and natural conditions in the Democratic Republic of the Congo.Malaria journal · 2021Article
- Malaria vector dynamics and utilization of insecticide-treated nets in low-transmission setting in Southwest Ethiopia: implications for residual transmission.BMC infectious diseases · 2021Article
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14 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundIndoor residual spraying (IRS) is being implemented as one of the malaria prevention methods in the Northern Region of Ghana. Changes in longevity, sporozoite and entomological inoculation rates (EIRs) of major malaria vectors were monitored to assess the impact of IRS in selected districts.
methodsMonthly human landing catches (HLCs) were used to collect mosquitoes from sentinel sites in three adjacent districts between July 2009 and December 2014: Savelugu Nanton (SND) where IRS had been implemented from 2008 to 2014; Tolon Kumbungu (TKD) where IRS had been implemented between 2008 and 2012 and Tamale Metropolis (TML) with no history of IRS. Mosquitoes were morphologically identified to species level and into sibling species, using PCR. Samples of Anopheles gambiae sensu lato (s.l.) were examined for parity and infectivity. EIR was calculated from biting and infectivity rates of malaria vectors.
resultsParity rates of An. gambiae s.l. decreased significantly (p < 0.0001) in SND from 44.8% in 2011 to 28.1% by 2014, and in TKD from 53.3% in 2011 to 46.6% in 2012 (p = 0.001). However 2 years after IRS was discontinued in TKD, the proportion of parous An. gambiae s.l. increased significantly to 68.5% in 2014 (p < 0.0001). Parity rates in the unsprayed district remained high throughout the study period, ranging between 68.6% in 2011 and 72.3% in 2014. The sum of monthly EIRs post-IRS season (July-December) in SND ranged between 2.1 and 6.3 infective bites/person/season (ib/p/s) during the 3 years that the district was sprayed with alphacypermethrin. EIR in SND was reduced to undetectable levels when the insecticide was switched to pirimiphos methyl CS in 2013 and 2014. Two years after IRS was withdrawn from TKD the sum of monthly EIRs (July-December) increased by about fourfold from 41.8 ib/p/s in 2012 to 154.4 ib/p/s in 2014. The EIR in the control area, TML, ranged between 35 ib/p/s in 2009 to 104.71 ib/p/s by 2014.
conclusionsThis study demonstrates that IRS application did have a significant impact on entomological indicators of malaria transmission in the IRS project districts of Northern Ghana. Transmission indicators increased following the withdrawal of IRS from Tolon Kumbungu District.
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