Determinants of host feeding success by Anopheles farauti

Russell, Tanya L.; Beebe, Nigel W.; Bugoro, Hugo; Apairamo, Allan; Cooper, Robert D.; Collins, Frank H.; Lobo, Neil F.; Burkot, Thomas R.

doi:10.1186/s12936-016-1168-y

Cited by 27 publications

(15 citation statements)

References 33 publications

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“…The original barrier screen collections in Indonesia, the Solomon Islands and Papua New Guinea by Burkot et al [8] used black or green screens without eaves of 70% shading weight, that were checked every 60 min. Russell et al [23] also used green 70% shading weight screens in the Solomon Islands. Moreno et al [22] in Amazonian Peru successfully captured An.…”

Section: Discussionmentioning

confidence: 99%

Maximising mosquito collections from barrier screens: the impacts of physical design and operation parameters

Pollard

Russell

2019

Parasites Vectors

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BackgroundTraditional methods for collecting outdoor resting mosquitoes are generally inefficient with relatively low numbers caught per unit effort. The barrier screen, designed to intercept mosquitoes as they fly between areas where blood meals are obtained and oviposition sites where eggs are laid, was developed in 2013 as a novel method of sampling outdoor mosquito populations. Barrier screens do not use an odorant lure and are thus a non-mechanical, simple, low maintenance and passive sampling method for use, even in isolated locations.MethodsTo maximise mosquito collections from barrier screens, multiple Latin square 3 × 3 experiments were conducted in Smithfield, Queensland, Australia. Parameters of barrier screens were varied including the effects of construction materials (net weight and colour), screen design and frequency of inspections.ResultsSignificantly more mosquitoes were collected on simple dark coloured screens of 50% or 70% shading weight with collections every 30 min. Sixty percent of mosquitoes were found on barrier screens within 60 cm of the ground.ConclusionsThe barrier screen is a relatively new adaptable tool that can answer a number of behavioural, ecological and epidemiological questions relevant for the surveillance and basic understanding of the movement and resting habits of mosquitoes by sex or physiological status. This method has demonstrated robustness in collecting a wide range of mosquito species as well as flexibility in where barrier screens can be deployed to explore mosquito movements within rural and peri-domestic environments.Electronic supplementary materialThe online version of this article (10.1186/s13071-019-3291-4) contains supplementary material, which is available to authorized users.

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Section: Discussionmentioning

confidence: 99%

Maximising mosquito collections from barrier screens: the impacts of physical design and operation parameters

Pollard

Russell

2019

Parasites Vectors

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“…While, PNG has experienced prolonged stockouts of antimalarial drugs during that time, it seems unlikely that drug shortages alone will lead to massive resurgence of transmission, if >80% of infections are asymptomatic i.e., remain mostly untreated [11,12]. Studies have also suggested behavioural adaptation of local malaria vectors to LLINs such that biting now occurs earlier [13], however Anopheles farauti, the major vector in PNG exhibited strong preference towards early outdoor biting even before LLINs were introduced [14]. Continued electrification (i.e., with solar-powered lights) allow people to be active much longer into the night than previously, even in remote PNG communities which may enhance human-vector contact further.…”

Section: Introductionmentioning

confidence: 99%

Decreased bioefficacy of long-lasting insecticidal nets and the resurgence of malaria in Papua New Guinea

Vinit

Timinao

Bubun

et al. 2020

Preprint

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Background: Papua New Guinea (PNG) has the highest malaria transmission outside of Africa and long-lasting insecticidal nets (LLIN) are the only vector-control tool distributed country-wide. LLIN were introduced into PNG in about 2005 and have been attributed to have had a huge impact on malaria transmission, with reductions in malaria prevalence observed from 15.7% (2008) to 1% (2014). Since 2015, malaria indicators in PNG have risen significantly. Similar trends have been observed in several African nations. In the present study, we observed a drastic reduction in bioefficacy of LLIN collected both from communities (used nets) and prior to use (new nets). We hypothesise that decreased bioefficacy of LLINs is a major contributor to the observed malaria resurgence in PNG and possibly in other parts of the world. Methods: New LLIN in original and unopened packaging (n=192) with a range of manufacturing dates from 2007-2019 were collected either directly from consignments or from households in 15 PNG provinces. Used LLIN (n=40) were collected in 2 provinces, with manufacturing dates ranging from 2008-2017. LLIN were subjected to standard WHO cone bioassays using fully susceptible An. farauti mosquitoes. A subset of LLIN was re-tested using fully susceptible An. gambiae mosquitoes in order to ensure reproducibility of results. Results: Only 7% (95% CI 4-12%) of new LLIN manufactured between 2013-2019 exhibited 100% mortality. However, 84% (95%CI: 65-84%) new nets manufactured in 2012 or before exhibited 100% mortality. Only 29 % of used LLIN less than 3 years old exhibited > 80% 24h-mortality. Results obtained in tests using An. farauti corresponded well with confirmatory tests conducted using An. gambiae. Discussion: Bioefficacy of LLIN in PNG appears to have been highly variable since 2013, with few nets manufactured since 2013 meeting WHO standards. This time-frame coincides with malaria resurgence in the country. These results may have ramifications for LLIN-based malaria control that go beyond the local PNG scenario.

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“…Hal ini dikarenakan lokasi penangkapan nyamuk sangat dekat dengan kolam dan aliran paritp a r i t k e c i l ya n g m e r u p a k a n t e m p a t perkembangbiakan dari jenis nyamuk Culex. Kepadatan nyamuk dipengaruhi oleh berbagai faktor diantara adalah dekatnya t e m p a t p e r k e m b a n g b i a k a n d e n g a n 18 pemukiman, ada tidaknya kandang ternak di 20 dekat pemukiman, dan pengaruh suhu dan kelembaban yang cocok untuk perkembangan 21 nyamuk.…”

Section: Analisa Dataunclassified

Perilaku Menghisap Darah dan Perkiraan Umur Populasi di Alam Nyamuk Potensial Vektor Filariasis di Desa Dadahup, Kabupaten Kapuas, Kalimantan Tengah

Ridha¹,

Sembiring²

2019

vektorp

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Mosquito Behavior longevetyTransmission assessment survey for filariasis was conducted in 2013 at Kapuas and found 17 positive in children which indicates transmission still occurs. This study aimed to determine the behavior and longevity of mosquitoes in nature have potential as filariasis vectors in Dadahup Village, Kapuas District. Mosquitoes were collected by human landing collection and dissecting. The results showed that the density of fluctuations Ma.annulata sucking blood peak at 18.outdoor. Bloodsucking behavior and rest of Ma.annulata and An.barbirostris are exophilic and exophagic whereas Ma. uniforms is endophilic and endophagic. The estimated age of the population was 22.99 days for Ma.annulata, 16.58 days for Ma.uniformis, and 9.82 days for An.barbirostris. The estimated age showed that the mosquitoes could potentially become filariasis vector. The types of habitat sites found are ponds, puddles, ditches, and rice fields. A B S T R A C T / A B S T R A KKata kunci: Filariasis Vektor potensial Nyamuk Perilaku Perkiraan umur Survei evaluasi transmisi filariasis telah dilakukan tahun 2013 di Kabupaten Kapuas dan ditemukan 17 anak positif, hal ini mengindikasikan masih terjadi transmisi penularan. Tujuan dari penelitian ini adalah untuk mengetahui perilaku dan peluang umur nyamuk di alam yang berpotensi sebagai vektor filariasis di Desa Dadahup, Kabupaten Kapuas. Nyamuk dikumpulkan dengan metode umpan orang kemudian dilakukan pembedahan. Hasil penelitian menunjukkan puncak kepadatan Ma.annulata menghisap darah pada pukul 18.16,58 hari dan An.barbirostris 9,82 hari. Nyamuk Cx. bitaeniorhynchus, Cx. tritaeniorhynchus, Cx. quinquefasciatus, Ma. annulata, Ma. uniformis bersifat eksofagik, sedangkan Ae. aegypti, Ae. albopictus, dan An. barbirostris lebih bersifat endofagik. Perkiraan umur populasi Cx. bitaeniorhynchus adalah 26,33 hari, Cx. tritaeniorhynchus selama 30,96 hari, dan Cx quinquefasciatus selama 28,82 hari, sehingga berpotensi sebagai vektor filariasis. Desa Dadahup terdapat jenis nyamuk dengan tipe habitat yang berpotensi sebagai vektor filariasis memungkinkan terjadinya transmisi filariasis.Nyamuk merupakan ektoparasit yang memiliki kemampuan sebagai vektor berbagai penyakit yaitu demam berdarah, chikungunya, demam kuning, Japanese encephalitis, ilariasis, ricketsia dan malaria. PENDAHULUANJenis-jenis nyamuk yang menjadi vektor utama berasal dari genus Aedes sp., Culex sp., Anopheles sp., Mansonia sp., dan Armigeres sp. ¹ Tingkah laku dan aktivitas nyamuk pada saat terbang berbeda-beda menurut jenisnya, 77 Kontribusi: Kedua penulis memiliki peran yang sama sebagai K o n t r i b u t o r U t a m a dalam artikel ini.

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Determinants of host feeding success by Anopheles farauti

Cited by 27 publications

References 33 publications

Maximising mosquito collections from barrier screens: the impacts of physical design and operation parameters

Maximising mosquito collections from barrier screens: the impacts of physical design and operation parameters

Decreased bioefficacy of long-lasting insecticidal nets and the resurgence of malaria in Papua New Guinea

Perilaku Menghisap Darah dan Perkiraan Umur Populasi di Alam Nyamuk Potensial Vektor Filariasis di Desa Dadahup, Kabupaten Kapuas, Kalimantan Tengah

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