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Indoor residual spraying

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https://www.readbyqxmd.com/read/28212636/experimental-hut-evaluation-of-a-novel-long-lasting-non-pyrethroid-durable-wall-lining-for-control-of-pyrethroid-resistant-anopheles-gambiae-and-anopheles-funestus-in-tanzania
#1
Robert Malima, Basiliana Emidi, Louisa A Messenger, Richard M Oxborough, Bernard Batengana, Wema Sudi, Sophie Weston, George Mtove, Joseph P Mugasa, Franklin W Mosha, Mark W Rowland, William Kisinza
BACKGROUND: A novel, insecticide-treated, durable wall lining (ITWL), which mimics indoor residual spraying (IRS), has been developed to provide prolonged vector control when fixed to the inner walls of houses. PermaNet(®) ITWL is a polypropylene material containing non-pyrethroids (abamectin and fenpyroximate) which migrate gradually to the surface. METHODS: An experimental hut trial was conducted in an area of pyrethroid-resistant Anopheles gambiae s.l. and Anopheles funestus s...
February 17, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28187779/bio-efficacy-of-deltamethrin-based-durable-wall-lining-against-wild-populations-of-anopheles-gambiae-s-l-in-northern-tanzania
#2
Eliningaya J Kweka, Ming-Chieh Lee, Beda J Mwang'onde, Filemoni Tenu, Stephen Munga, Epiphania E Kimaro, Yousif E Himeidan
BACKGROUND: Indoor residual spraying (IRS) is one of the preferred tools used for control of malaria in many settings in the world. However, this control tool still faces challenges that include lack of long lasting active ingredient, limited number of well-trained personal, and need of repeated treatment which increases operational costs and reduces acceptability by residents. As a result there is need to develop and validate other methods which can complement the existing controls. The current study compared the bio-efficacy of durable wall lining (DL) (treated with deltamethrin 265 mg/m(2)) and IRS (with deltamethrin 5% WP at 20 mg/m(2)) on indoor mosquitoes densities and biting behaviour of mosquitoes in comparison with control houses without either DL or IRS...
February 10, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28187770/malaria-risk-in-young-male-travellers-but-local-transmission-persists-a-case-control-study-in-low-transmission-namibia
#3
Jennifer L Smith, Joyce Auala, Erastus Haindongo, Petrina Uusiku, Roly Gosling, Immo Kleinschmidt, Davis Mumbengegwi, Hugh J W Sturrock
BACKGROUND: A key component of malaria elimination campaigns is the identification and targeting of high risk populations. To characterize high risk populations in north central Namibia, a prospective health facility-based case-control study was conducted from December 2012-July 2014. Cases (n = 107) were all patients presenting to any of the 46 health clinics located in the study districts with a confirmed Plasmodium infection by multi-species rapid diagnostic test (RDT). Population controls (n = 679) for each district were RDT negative individuals residing within a household that was randomly selected from a census listing using a two-stage sampling procedure...
February 10, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28183343/spectrum-malaria-a-user-friendly-projection-tool-for-health-impact-assessment-and-strategic-planning-by-malaria-control-programmes-in-sub-saharan-africa
#4
Matthew Hamilton, Guy Mahiane, Elric Werst, Rachel Sanders, Olivier Briët, Thomas Smith, Richard Cibulskis, Ewan Cameron, Samir Bhatt, Daniel J Weiss, Peter W Gething, Carel Pretorius, Eline L Korenromp
BACKGROUND: Scale-up of malaria prevention and treatment needs to continue but national strategies and budget allocations are not always evidence-based. This article presents a new modelling tool projecting malaria infection, cases and deaths to support impact evaluation, target setting and strategic planning. METHODS: Nested in the Spectrum suite of programme planning tools, the model includes historic estimates of case incidence and deaths in groups aged up to 4, 5-14, and 15+ years, and prevalence of Plasmodium falciparum infection (PfPR) among children 2-9 years, for 43 sub-Saharan African countries and their 602 provinces, from the WHO and malaria atlas project...
February 10, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28173824/reducing-biting-rates-of-aedes-aegypti-with-metofluthrin-investigations-in-time-and-space
#5
Jonathan M Darbro, M Odwell Muzari, Arthur Giblin, Rebecca M Adamczyk, Scott A Ritchie, Gregor J Devine
BACKGROUND: Indoor residual spraying is key to dengue control in Cairns and other parts of northern Queensland, Australia, where Aedes aegypti is prevalent, but the strategy faces challenges with regards to slow application time and, therefore, community coverage. A faster potential improvement might be the use of polyethylene netting impregnated with the volatile pyrethroid metofluthrin (SumiOne™). This formulation was assessed in rooms in three houses in Cairns, Australia. One emanator was placed in each room and cages of 10 female Aedes aegypti were exposed at distances of 1 and 3 m...
February 7, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28166308/optimal-control-and-cost-effective-analysis-of-malaria-visceral-leishmaniasis-co-infection
#6
Folashade B Agusto, Ibrahim M ELmojtaba
In this paper, a deterministic model involving the transmission dynamics of malaria/visceral leishmaniasis co-infection is presented and studied. Optimal control theory is then applied to investigate the optimal strategies for curtailing the spread of the diseases using the use of personal protection, indoor residual spraying and culling of infected reservoirs as the system control variables. Various combination strategies were examined so as to investigate the impact of the controls on the spread of the disease...
2017: PloS One
https://www.readbyqxmd.com/read/28126001/serology-reveals-heterogeneity-of-plasmodium-falciparum-transmission-in-northeastern-south-africa-implications-for-malaria-elimination
#7
Joseph Biggs, Jaishree Raman, Jackie Cook, Khumbulani Hlongwana, Chris Drakeley, Natashia Morris, Ishen Serocharan, Eunice Agubuzo, Philip Kruger, Aaron Mabuza, Alpheus Zitha, Elliot Machaba, Maureen Coetzee, Immo Kleinschmidt
BACKGROUND: It is widely acknowledged that modifications to existing control interventions are required if South Africa is to achieve malaria elimination. Targeting indoor residual spraying (IRS) to areas where cases have been detected is one strategy currently under investigation in northeastern South Africa. This seroprevalence baseline study, nested within a targeted IRS trial, was undertaken to provide insights into malaria transmission dynamics in South Africa and evaluate whether sero-epidemiological practices have the potential to be routinely incorporated into elimination programmes...
January 26, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28106262/phlebotomine-sandfly-ecology-on-the-indian-subcontinent-does-village-vegetation-play-a-role-in-sandfly-distribution-in-bihar-india
#8
D M Poché, R M Poché, S Mukherjee, G A Franckowiak, L N Briley, D J Somers, R B Garlapati
Visceral leishmaniasis (VL) is a disease that results in approximately 50 000 human deaths annually. It is transmitted through the bites of phlebotomine sandflies and around two-thirds of cases occur on the Indian subcontinent. Indoor residual spraying (IRS), the efficacy of which depends upon sandfly adults resting indoors, is the only sandfly control method used in India. Recently, in Bihar, India, considerable sandfly numbers have been recorded outdoors in village vegetation, which suggests that IRS may control only a portion of the population...
January 20, 2017: Medical and Veterinary Entomology
https://www.readbyqxmd.com/read/28091570/increasing-the-potential-for-malaria-elimination-by-targeting-zoophilic-vectors
#9
Jessica L Waite, Sunita Swain, Penelope A Lynch, S K Sharma, Mohammed Asrarul Haque, Jacqui Montgomery, Matthew B Thomas
Countries in the Asia Pacific region aim to eliminate malaria by 2030. A cornerstone of malaria elimination is the effective management of Anopheles mosquito vectors. Current control tools such as insecticide treated nets or indoor residual sprays target mosquitoes in human dwellings. We find in a high transmission region in India, malaria vector populations show a high propensity to feed on livestock (cattle) and rest in outdoor structures such as cattle shelters. We also find evidence for a shift in vector species complex towards increased zoophilic behavior in recent years...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28077167/role-of-anopheles-cellia-rufipes-gough-1910-and-other-local-anophelines-in-human-malaria-transmission-in-the-northern-savannah-of-cameroon-a-cross-sectional-survey
#10
Raymond N Tabue, Parfait Awono-Ambene, Josiane Etang, Jean Atangana, Antonio-Nkondjio C, Jean C Toto, Salomon Patchoke, Rose G F Leke, Etienne Fondjo, Abraham P Mnzava, Tessa B Knox, Alexis Tougordi, Martin J Donnelly, Jude D Bigoga
BACKGROUND: As part of a study to determine the impact of insecticide resistance on the effectiveness of long-lasting insecticide treated nets (LLINs) in the north of Cameroon, the unexpectedly high density and anthropophilic behaviour of Anopheles rufipes lead us to investigate this species bionomics and role in human malaria parasite transmission. METHODS: For four consecutive years (2011-2014), annual cross-sectional sampling of adult mosquitoes was conducted during the peak malaria season (September-October) in three health districts in northern Cameroon...
January 11, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28070009/a-malaria-ecology-index-predicted-spatial-and-temporal-variation-of-malaria-burden-and-efficacy-of-antimalarial-interventions-based-on-african-serological-data
#11
Gordon C McCord, Jesse K Anttila-Hughes
Reducing the global health burden of malaria is complicated by weak reporting systems for infectious diseases and a paucity of vital statistics registration. This limits our ability to predict changes in malaria health burden intensity, target antimalarial resources where needed, and identify malaria impacts in retrospective data. We refined and deployed a temporally and spatially varying Malaria Ecology Index (MEI) incorporating climatological and ecological data to estimate malaria transmission strength and validate it against cross-sectional serology data from 39,875 children from seven sub-Saharan African countries...
January 9, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28052759/exploring-the-use-of-routinely-available-retrospective-data-to-study-the-association-between-malaria-control-scale-up-and-micro-economic-outcomes-in-zambia
#12
Alison Comfort, Anthony Leegwater, Sharon Nakhimovsky, Henry Kansembe, Busiku Hamainza, Benson Bwalya, Martin Alilio, Ben Johns, Lauren Olsho
BACKGROUND: Country-level evidence on the impact of malaria control on micro-economic outcomes is vital for mobilizing domestic and donor resources for malaria control. Using routinely available survey data could facilitate this investigation in a cost-efficient way. METHODS: The authors used Malaria Indicator Surveys (MIS) and Living Conditions Monitoring Survey (LCMS) data from 2006 to 2010 for all 72 districts in Zambia to relate malaria control scale-up with household food spending (proxy for household well-being), educational attainment and agricultural production...
January 4, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28049475/assessing-the-effect-of-indoor-residual-spraying-irs-on-malaria-morbidity-in-northern-uganda-a-before-and-after-study
#13
Betty Bawuba Tukei, Andy Beke, Héctor Lamadrid-Figueroa
BACKGROUND: Indoor residual spraying (IRS) is known to reduce malaria transmission. In northern Uganda, a high endemic area, IRS has been implemented since 2006. Limited data however, exists on the effect of IRS on the malaria burden. This study sought to assess the effect of IRS on malaria morbidity in the high intensity area of northern Uganda. Retrospective routine data from ten health facilities in three districts which had received at least five rounds of IRS in northern Uganda was analysed...
January 3, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28032103/laboratory-evaluation-of-temephos-against-anopheles-stephensi-and-culex-pipiens-larvae-in-iran
#14
Mohammad Reza Abai, Ahmad Ali Hanafi-Bojd, Hassan Vatandoost
BACKGROUND: Malaria is still a health problem in Iran. There are several vector control activities, including Indoor Residual spraying, using insecticide treated nets and larviciding including Temephos. In addition nuisance mosquitos are prevalent in the urban areas. So that evaluation of this species to larvicide will provide a clue for management of vector control activities. METHODS: Two mosquito species were used in this study: Anopheles stephensi were collected from Kazeroun and Culex pipiens from Tehran, capital of Iran...
December 2016: Journal of Arthropod-borne Diseases
https://www.readbyqxmd.com/read/28032095/control-of-phlebotomine-sand-flies-in-iran-a-review-article
#15
REVIEW
Mohammad Reza Yaghoobi-Ershadi
Leishmaniasis has long been known as a significant public health challenge in many parts of Iran. Phlebotomus papatasi and P. sergenti are the vectors of Zoonotic Cutaneous Leishmaniasis and Anthroponotic Cutaneous Leishmaniasis respectively, and 5 species of sand flies including P. kandelakii, P. neglectus, P. perfiliewi, P. keshishiani and P. alexandri are considered as probable vectors of Zoonotic visceral leishmaniasis. A literature search was performed of the relevant multiple databases from 1966 to 2013 to include studies on sand flies, vector control, leishmaniasis, Phlebotomus...
December 2016: Journal of Arthropod-borne Diseases
https://www.readbyqxmd.com/read/28031202/slow-release-ivermectin-formulation-for-malaria-control-a-pilot-study-in-80-kg-pigs
#16
Carlos Chaccour, Gloria Abizanda, Ángel Irigoyen, José Luis Del Pozo
Vector control with long-lasting insecticidal nets (LLINs) and indoor residual spraying are responsible for more than two thirds of the reduction seen in malaria prevalence in Africa over the last 15 years (1).….
December 28, 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28011725/indoor-resting-behavior-of-aedes-aegypti-diptera-culicidae-in-acapulco-mexico
#17
Felipe Dzul-Manzanilla, Jésus Ibarra-López, Wilbert Bibiano Marín, Andrés Martini-Jaimes, Joel Torres Leyva, Fabián Correa-Morales, Herón Huerta, Pablo Manrique-Saide, Gonzalo Vazquez M Prokopec
The markedly anthropophilic and endophilic behaviors of Aedes aegypti (L.) make it a very efficient vector of dengue, chikungunya, and Zika viruses. Although a large body of research has investigated the immature habitats and conditions for adult emergence, relatively few studies have focused on the indoor resting behavior and distribution of vectors within houses. We investigated the resting behavior of Ae. aegypti indoors in 979 houses of the city of Acapulco, Mexico, by performing exhaustive indoor mosquito collections to describe the rooms and height at which mosquitoes were found resting...
December 22, 2016: Journal of Medical Entomology
https://www.readbyqxmd.com/read/27986094/using-an-intervention-mapping-approach-for-planning-implementing-and-assessing-a-community-led-project-towards-malaria-elimination-in-the-eastern-province-of-rwanda
#18
Chantal Marie Ingabire, Emmanuel Hakizimana, Fredrick Kateera, Alexis Rulisa, Bart Van Den Borne, Ingmar Nieuwold, Claude Muvunyi, Constantianus J M Koenraadt, Michele Van Vugt, Leon Mutesa, Jane Alaii
BACKGROUND: Active community participation in malaria control is key to achieving malaria pre-elimination in Rwanda. This paper describes development, implementation and evaluation of a community-based malaria elimination project in Ruhuha sector, Bugesera district, Eastern province of Rwanda. METHODS: Guided by an intervention mapping approach, a needs assessment was conducted using household and entomological surveys and focus group interviews. Data related to behavioural, epidemiological, entomological and economical aspects were collected...
December 16, 2016: Malaria Journal
https://www.readbyqxmd.com/read/27977810/disrupting-mosquito-reproduction-and-parasite-development-for-malaria-control
#19
Lauren M Childs, Francisco Y Cai, Evdoxia G Kakani, Sara N Mitchell, Doug Paton, Paolo Gabrieli, Caroline O Buckee, Flaminia Catteruccia
The control of mosquito populations with insecticide treated bed nets and indoor residual sprays remains the cornerstone of malaria reduction and elimination programs. In light of widespread insecticide resistance in mosquitoes, however, alternative strategies for reducing transmission by the mosquito vector are urgently needed, including the identification of safe compounds that affect vectorial capacity via mechanisms that differ from fast-acting insecticides. Here, we show that compounds targeting steroid hormone signaling disrupt multiple biological processes that are key to the ability of mosquitoes to transmit malaria...
December 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27965266/indoor-residual-spraying-delivery-models-to-prevent-malaria-comparison-of-community-and-district-based-approaches-in-ethiopia
#20
Benjamin Johns, Yemane Yeebiyo Yihdego, Lena Kolyada, Dereje Dengela, Sheleme Chibsa, Gunawardena Dissanayake, Kristen George, Hiwot Solomon Taffese, Bradford Lucas
BACKGROUND: Indoor residual spraying (IRS) for malaria prevention has traditionally been implemented in Ethiopia by the district health office with technical and operational inputs from regional, zonal, and central health offices. The United States President's Malaria Initiative (PMI) in collaboration with the Government of Ethiopia tested the effectiveness and efficiency of integrating IRS into the government-funded community-based rural health services program. METHODS: Between 2012 and 2014, PMI conducted a mixed-methods study in 11 districts of Oromia region to compare district-based IRS (DB IRS) and community-based IRS (CB IRS) models...
December 23, 2016: Global Health, Science and Practice
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