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Indoor residual spraying

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https://www.readbyqxmd.com/read/28291790/anaemia-among-children-in-a-drought-affected-community-in-south-central-ethiopia
#1
Taye Gari, Eskindir Loha, Wakgari Deressa, Tarekegn Solomon, Hanibale Atsbeha, Meselech Assegid, Alemayehu Hailu, Bernt Lindtjørn
INTRODUCTION: As part of a field trial (PACTR201411000882128) to provide evidence on the combined use of long-lasting insecticidal nets and indoor residual spray for malaria prevention, we measured haemoglobin values among children aged 6 to 59 months. The aim of this study was to estimate the prevalence of anaemia, and to determine the risk factors of anaemia and change in haemoglobin value in Adami Tullu district in south-central Ethiopia. METHODS: Repeated cross-sectional surveys among 2984 children in 2014 and 3128 children in 2015; and a cohort study (malaria as exposure and anaemia as outcome variable) were conducted...
2017: PloS One
https://www.readbyqxmd.com/read/28279458/elimination-of-visceral-leishmaniasis-in-the-indian-subcontinent-a-comparison-of-predictions-from-three-transmission-models
#2
Epke A Le Rutte, Lloyd A C Chapman, Luc E Coffeng, Sarah Jervis, Epco C Hasker, Shweta Dwivedi, Morchan Karthick, Aritra Das, Tanmay Mahapatra, Indrajit Chaudhuri, Marleen C Boelaert, Graham F Medley, Sridhar Srikantiah, T Deirdre Hollingsworth, Sake J de Vlas
We present three transmission models of visceral leishmaniasis (VL) in the Indian subcontinent (ISC) with structural differences regarding the disease stage that provides the main contribution to transmission, including models with a prominent role of asymptomatic infection, and fit them to recent case data from 8 endemic districts in Bihar, India. Following a geographical cross-validation of the models, we compare their predictions for achieving the WHO VL elimination targets with ongoing treatment and vector control strategies...
March 2017: Epidemics
https://www.readbyqxmd.com/read/28262811/a-new-malaria-vector-mosquito-in-south-africa
#3
Ashley Burke, Leonard Dandalo, Givemore Munhenga, Yael Dahan-Moss, Frans Mbokazi, Sifiso Ngxongo, Maureen Coetzee, Lizette Koekemoer, Basil Brooke
South Africa aims to eliminate malaria within its borders by 2018. Despite well-coordinated provincial vector control programmes that are based on indoor residual insecticide spraying, low-level residual malaria transmission continues in the low-altitude border regions of the north-eastern sector of the country. In order to identify the underlying causes of residual transmission, an enhanced vector surveillance system has been implemented at selected sites in the Mpumalanga and KwaZulu-Natal (KZN) provinces...
March 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28254460/knowledge-attitude-and-practice-about-malaria-in-south-western-saudi-arabia-a-household-based-cross-sectional-survey
#4
Sami Khairy, Khaled Al-Surimi, Anna Ali, Hussam M Shubily, Nisreen Al Walaan, Mowafa Househ, Ashraf El-Metwally
This study aimed to assess the level of knowledge, attitudes, and practices (KAP) concerning malaria and malaria prevention among rural populations residing in the southwestern region of Saudi Arabia. This was a household-based cross-sectional survey, using structured questionnaire that was developed and distributed among households selected randomly from 19 villages (clusters) located in a southwestern region of Saudi Arabia, north of the border with Yemen. The data collected were analyzed using SPSS version 20...
February 21, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28241875/long-term-acceptability-durability-and-bio-efficacy-of-zerovector-%C3%A2-durable-lining-for-vector-control-in-papua-new-guinea
#5
Joseph J Kuadima, Lincoln Timinao, Laura Naidi, Anthony Tandrapah, Manuel W Hetzel, Cyrille Czeher, Justin Pulford
BACKGROUND: This study examined the acceptability, durability and bio-efficacy of pyrethroid-impregnated durable lining (DL) over a three-year period post-installation in residential homes across Papua New Guinea (PNG). METHODS: ZeroVector(®) ITPS had previously been installed in 40 homes across four study sites representing a cross section of malaria transmission risk and housing style. Structured questionnaires, DL visual inspections and group interviews (GIs) were completed with household heads at 12- and 36-months post-installation...
February 28, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28222094/housing-improvements-and-malaria-risk-in-sub-saharan-africa-a-multi-country-analysis-of-survey-data
#6
Lucy S Tusting, Christian Bottomley, Harry Gibson, Immo Kleinschmidt, Andrew J Tatem, Steve W Lindsay, Peter W Gething
BACKGROUND: Improvements to housing may contribute to malaria control and elimination by reducing house entry by malaria vectors and thus exposure to biting. We tested the hypothesis that the odds of malaria infection are lower in modern, improved housing compared to traditional housing in sub-Saharan Africa (SSA). METHODS AND FINDINGS: We analysed 15 Demographic and Health Surveys (DHS) and 14 Malaria Indicator Surveys (MIS) conducted in 21 countries in SSA between 2008 and 2015 that measured malaria infection by microscopy or rapid diagnostic test (RDT)...
February 2017: PLoS Medicine
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
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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