ArticleMalaria journal2022
Vector composition, abundance, biting patterns and malaria transmission intensity in Madang, Papua New Guinea: assessment after 7 years of an LLIN-based malaria control programme.
Article in Malaria journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed.
- Understanding community and health system acceptability, readiness and perspectives on the introduction of new vector control approaches for malaria control in Papua New Guinea.Malaria journal · 2026Article
- Unite against Malaria: challenges and achievements in malaria control around the globe.Nature communications · 2026Article
- Insecticidal efficacy of residual spraying with deltamethrin-clothianidin (FludoraParasites & vectors · 2026Article
- Outdoor biting by malaria vectors: what are the options for intervention?Malaria journal · 2025Review
- Human and entomological determinants of malaria transmission in the Lihir Islands of Papua New Guinea: A cross-sectional study.PLoS neglected tropical diseases · 2025Article
- Insufficient duration of insecticidal efficacy of YaheMalaria journal · 2024Article
- Mathematical models of Plasmodium vivax transmission: A scoping review.PLoS computational biology · 2024Article
- Genetic differentiation and bottleneck effects in the malaria vectorsEcology and evolution · 2024Article
- A cross-sectional study to ascertain malaria prevalence among asymptomatic travellers arriving on the Lihir Group of Islands, Papua New Guinea: implications for elimination efforts.Malaria journal · 2023Article
- Article
- Asia-Pacific International Center of Excellence in Malaria Research: Maximizing Impact on Malaria Control Policy and Public Health in Cambodia and Papua New Guinea.The American journal of tropical medicine and hygiene · 2022Article
- Blood-feeding patterns of Anopheles vectors of human malaria in Malawi: implications for malaria transmission and effectiveness of LLIN interventions.Malaria journal · 2022Article
- A review of malaria epidemiology and control in Papua New Guinea 1900 to 2021: Progress made and future directions.Frontiers in epidemiology · 2022Review
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9 authors.
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Abstract
backgroundA malaria control programme based on distribution of long-lasting insecticidal bed nets (LLINs) and artemisinin combination therapy began in Papua New Guinea in 2009. After implementation of the programme, substantial reductions in vector abundance and malaria transmission intensity occurred. The research reported here investigated whether these reductions remained after seven years of sustained effort.
methodsAll-night (18:00 to 06:00) mosquito collections were conducted using human landing catches and barrier screen methods in four villages of Madang Province between September 2016 and March 2017. Anopheles species identification and sporozoite infection with Plasmodium vivax and Plasmodium falciparum were determined with molecular methods. Vector composition was expressed as the relative proportion of different species in villages, and vector abundance was quantified as the number of mosquitoes per barrier screen-night and per person-night. Transmission intensity was quantified as the number of sporozoite-infective vector bites per person-night.
resultsFive Anopheles species were present, but vector composition varied greatly among villages. Anopheles koliensis, a strongly anthropophilic species was the most prevalent in Bulal, Matukar and Wasab villages, constituting 63.7-73.8% of all Anopheles, but in Megiar Anopheles farauti was the most prevalent species (97.6%). Vector abundance varied among villages (ranging from 2.8 to 72.3 Anopheles per screen-night and 2.2-31.1 Anopheles per person-night), and spatially within villages. Malaria transmission intensity varied among the villages, with values ranging from 0.03 to 0.5 infective Anopheles bites per person-night. Most (54.1-75.1%) of the Anopheles bites occurred outdoors, with a substantial proportion (25.5-50.8%) occurring before 22:00.
conclusionThe estimates of vector abundance and transmission intensity in the current study were comparable to or higher than estimates in the same villages in 2010-2012, indicating impeded programme effectiveness. Outdoor and early biting behaviours of vectors are some of the likely explanatory factors. Heterogeneity in vector composition, abundance and distribution among and within villages challenge malaria control programmes and must be considered when planning them.
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