Abstract:
BACKGROUND:Defining the number and location of sprayable structures (houses) is foundational to plan and monitor indoor residual spray (IRS) implementation, a primary intervention used to control the transmission of malaria. Only by mapping the location and type of all sprayable structures can IRS operations be planned, estimates of spray coverage determined, and targeted delivery of IRS to specific locations be achieved. Previously, field-based enumeration has been used to guide IRS campaigns, however, this approach is costly, time-consuming and difficult to scale. As a result, field-based enumeration typically fails to map all structures in a given area, making estimations less reliable and reducing the enumerated coverage. METHODS:Using open source satellite imagery and Geographic Information System software, satellite enumeration was conducted to guide IRS operations in 15 districts (91,302 km(2)) in northern Zambia during the 2014 spray season. Cost of satellite enumeration was compared to standard enumeration. Enumerated households were sampled to estimate sprayable surface area and wall type from the satellite enumeration using linear and logistic regression, respectively. RESULTS:In comparison to the traditional field-based enumeration procedure, satellite-based enumeration was 22 times faster, and 10 times less costly. An estimated 98 % of the satellite enumerated buildings correctly classified roof type. Predicted surface area of each household correlated at a value of 0.91 with measured surface area of each household. CONCLUSION:For IRS campaigns, high quality and high coverage enumeration data aid in planning, through informed insecticide procurement. Through the identification of geographical areas and populations to target, enumeration data guide operations and assist monitoring and evaluation of IRS through the unbiased estimation of coverage achieved. Satellite enumeration represents a quick, cheap and accurate system to provide these data, and has potential applications beyond IRS for delivery of other targeted or non-targeted interventions (e.g. net distributions, mass drug administration, immunization campaigns, or even sampling frames for field studies).
journal_name
Malar Jjournal_title
Malaria journalauthors
Kamanga A,Renn S,Pollard D,Bridges DJ,Chirwa B,Pinchoff J,Larsen DA,Winters AMdoi
10.1186/s12936-015-0831-zsubject
Has Abstractpub_date
2015-09-17 00:00:00pages
345issn
1475-2875pii
10.1186/s12936-015-0831-zjournal_volume
14pub_type
杂志文章相关文献
MALARIA JOURNAL文献大全abstract:BACKGROUND:Intensive malaria transmission along international borders is a significant impediment to malaria elimination in the Greater Mekong Subregion (GMS) of Southeast Asia. Passive case detection (PCD) was used to study the dynamics and trends of malaria transmission at the China-Myanmar border to provide epidemio...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/s12936-019-2924-6
更新日期:2019-09-12 00:00:00
abstract:BACKGROUND:Coverage of vulnerable groups with insecticide-treated nets (ITNs) in Ghana, as in the majority of countries of sub-Saharan Africa is currently low. A voucher scheme was introduced in Volta Region as a possible sustainable delivery system for increasing this coverage through scale-up to other regions. Succes...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/1475-2875-6-14
更新日期:2007-02-02 00:00:00
abstract:BACKGROUND:As Swaziland progresses towards national malaria elimination, the importation of parasites into receptive areas becomes increasingly important. Imported infections have the potential to instigate local transmission and sustain local parasite reservoirs. METHODS:Travel histories from Swaziland's routine surv...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/s12936-017-2004-8
更新日期:2017-09-08 00:00:00
abstract:BACKGROUND:The merozoite surface protein 1 (msp1) is one of the most studied vaccine candidate genes in mammalian Plasmodium spp. to have been used for investigations of epidemiology, population structures, and immunity to infections. However methodological difficulties have impeded the use of nuclear markers such as m...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/1475-2875-12-381
更新日期:2013-10-30 00:00:00
abstract:BACKGROUND:Over the past 15 years, mortality and morbidity due to malaria have been reduced substantially in sub-Saharan Africa and local elimination has been achieved in some settings. This study addresses the bio-ecology of larval and adult stages of malaria vectors, Plasmodium infection in Anopheles gambiae s.l. in ...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/s12936-016-1230-9
更新日期:2016-03-18 00:00:00
abstract: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 p...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/s12936-017-1719-x
更新日期:2017-02-10 00:00:00
abstract:BACKGROUND:Antananarivo, the capital of Madagascar, is located at an altitude of over 1,200 m. The environment at this altitude is not particularly favourable to malaria transmission, but malaria nonetheless remains a major public health problem. The aim of this study was to evaluate exposure to malaria in the urban po...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/1475-2875-5-106
更新日期:2006-11-10 00:00:00
abstract::Plasmodium knowlesi is a potentially life-threatening zoonotic malaria parasite due to its relatively short erythrocytic cycle. Microscopic identification of P. knowlesi is difficult, with "compacted parasite cytoplasm" being one of the important identifying keys. This report is about a case of hyperparasitaemic human...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/1475-2875-12-88
更新日期:2013-03-06 00:00:00
abstract:BACKGROUND:Chloroquine has been the treatment of choice for acute vivax malaria for more than 60 years. Malaria caused by Plasmodium vivax has recently shown resistance to chloroquine in some places. This study compared the efficacy and safety of fixed dose combination (FDC) of arterolane maleate and piperaquine phosph...
journal_title:Malaria journal
pub_type: 杂志文章,多中心研究
doi:10.1186/s12936-016-1084-1
更新日期:2016-01-27 00:00:00
abstract:BACKGROUND:In Vietnam, malaria transmission has been reduced to very low levels over the past 20 years, and as a consequence, the country aims to eliminate malaria by 2030. This study aimed to characterize the dynamics and extent of the parasite reservoir in Central Vietnam, in order to further target elimination strat...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/s12936-018-2326-1
更新日期:2018-04-27 00:00:00
abstract:BACKGROUND:Sulphadoxine-pyrimethamine (SP) has been in use for the treatment of uncomplicated falciparum malaria in Malaysia since the 1970s and is still widely employed in spite of widespread clinical resistance. Resistance to SP is known to be mediated by mutations in the pfdhfr and pfdhps genes. The aim of the prese...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/1475-2875-12-198
更新日期:2013-06-12 00:00:00
abstract:BACKGROUND:Anti-malarial drugs are an important tool for malaria control and elimination. Alongside their direct benefit in the treatment of disease, drug use has a community-level effect, clearing the reservoir of infection and reducing onward transmission of the parasite. Different compounds potentially have differen...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/s12936-017-1988-4
更新日期:2017-08-16 00:00:00
abstract::Genetic manipulation of malaria parasites remains an inefficient, time-consuming and resource-intensive process. Presented here is a set of methods for 96-well plate-based transfection and culture that improve the efficiency of genetic manipulation of Plasmodium falciparum. Compared to standard protocols plate-based t...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/1475-2875-11-22
更新日期:2012-01-18 00:00:00
abstract:BACKGROUND:Recent progress in malaria control has caused renewed interest in mass drug administration (MDA) as a potential elimination strategy but the evidence base is limited. China has extensive experience with MDA, but it is not well documented. METHODS:An ecological study was conducted to describe the use of MDA ...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/1475-2875-12-383
更新日期:2013-11-01 00:00:00
abstract:BACKGROUND:Transmission of Plasmodium vivax malaria is dependent on vector availability, biting rates and parasite development. In turn, each of these is influenced by climatic conditions. Correlations have previously been detected between seasonal rainfall, temperature and malaria incidence patterns in various setting...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/1475-2875-12-452
更新日期:2013-12-18 00:00:00
abstract::The sterile insect technique (SIT) has been shown to be an effective and sustainable genetic approach to control populations of selected major pest insects, when part of area-wide integrated pest management (AW-IPM) programmes. The technique introduces genetic sterility in females of the target population in the field...
journal_title:Malaria journal
pub_type: 杂志文章,评审
doi:10.1186/1475-2875-8-S2-S1
更新日期:2009-11-16 00:00:00
abstract:BACKGROUND:Knowledge of the population genetics and transmission dynamics of Plasmodium vivax is crucial in predicting the emergence of drug resistance, relapse pattern and novel parasite phenotypes, all of which are relevant to the control of vivax infections. The aim of this study was to analyse changes in the geneti...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/s12936-016-1136-6
更新日期:2016-02-09 00:00:00
abstract:BACKGROUND:Plasmodium falciparum readily develops resistance to the anti-folates pyrimethamine and proguanil via a characteristic set of mutations in the dihydrofolate reductase (PfDHFR) gene that leads to reduced competitive drug binding at the enzyme's active site. Analogous mutations can be found in the DHFR gene in...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/1475-2875-9-65
更新日期:2010-03-02 00:00:00
abstract:BACKGROUND:In insects, including Anopheles mosquitoes, Dscam (Down syndrome cell adhesion molecule) appears to be involved in phagocytosis of pathogens, and shows pathogen-specific splice-form expression between divergent pathogen (or parasite) types (e.g. between bacteria and Plasmodium or between Plasmodium berghei a...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/1475-2875-10-156
更新日期:2011-06-08 00:00:00
abstract:BACKGROUND:Imported cases of multidrug resistant Plasmodium falciparum and treatment failure with artemisinin-based regimens, although rare, have been described also in Western countries and their management is often challenging. This is also due to an inadequate knowledge and implementation of health prevention measur...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/s12936-017-1795-y
更新日期:2017-04-14 00:00:00
abstract::[This corrects the article DOI: 10.1186/s12936-016-1486-0.]. ...
journal_title:Malaria journal
pub_type: 杂志文章,已发布勘误
doi:10.1186/s12936-016-1544-7
更新日期:2016-09-27 00:00:00
abstract:BACKGROUND:In a previous study, severe and cerebral malaria have been connected with acute cochlear malfunction in children, demonstrated by a decrease of transitory evoked otoacoustic emissions (TEOAEs) reproducibility. This study aims to determine whether cochlear malfunction persists for 4 years after recovery from ...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/s12936-019-2840-9
更新日期:2019-06-24 00:00:00
abstract:BACKGROUND:Counts of malaria parasites in peripheral blood are important to assess severity of Plasmodium falciparum malaria. Thin and thick smears are routinely used for this purpose. METHODS:In this study the Binax NOW Malaria Test, an easy-to-perform rapid diagnostic test, with Histidine Rich Protein-2 (HRP-2) and ...
journal_title:Malaria journal
pub_type: 杂志文章,多中心研究
doi:10.1186/1475-2875-10-300
更新日期:2011-10-14 00:00:00
abstract:BACKGROUND:Rapid diagnosis and correct treatment of cases are the main objectives of control programs in malaria-endemic areas. METHODS AND RESULTS:To evaluate these criteria and in a comparative study, blood specimens were collected from 120 volunteers seeking care at the Malaria Health Center in Chahbahar district. ...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/1475-2875-1-2
更新日期:2002-02-08 00:00:00
abstract:BACKGROUND:Real-time PCR is a sensitive and specific method for the analysis of Plasmodium DNA. However, prior purification of genomic DNA from blood is necessary since PCR inhibitors and quenching of fluorophores from blood prevent efficient amplification and detection of PCR products. METHODS:Reagents designed to sp...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/1475-2875-10-244
更新日期:2011-08-19 00:00:00
abstract:BACKGROUND:Drug resistance determination for Plasmodium falciparum infections are important to determining the type of treatment to be given. Besides in vivo experiments, molecular methods, such as sequencing and PCR, are now increasingly being used. Here a cheaper alternative to sequencing or the use of multiplex 5'nu...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/1475-2875-9-134
更新日期:2010-05-21 00:00:00
abstract:BACKGROUND:The study of the biology, transmission and pathogenesis of Plasmodium vivax is hindered due to the lack of a robustly propagating, continuous culture of this parasite. The current culture system for P. vivax parasites still suffered from consistency and difficulties in long-term maintenance of parasites in c...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/s12936-015-0815-z
更新日期:2015-08-05 00:00:00
abstract:BACKGROUND:Malaria was endemic in the Rhône-Alpes area of eastern France in the 19th century and life expectancy was particularly shortened in Alpine valleys. This study was designed to determine how the disease affected people in the area and to identify the factors influencing malaria transmission. METHODS:Demograph...
journal_title:Malaria journal
pub_type: 历史文章,杂志文章
doi:10.1186/1475-2875-6-115
更新日期:2007-08-29 00:00:00
abstract:BACKGROUND:Policy makers, governments and donors are faced with an information gap when considering ways to improve access to artemisinin-based combination therapy (ACT) and malaria diagnostics including rapid diagnostic tests (RDTs). To help address some of these gaps, a five-year multi-country research project called...
journal_title:Malaria journal
pub_type: 杂志文章
doi:10.1186/1475-2875-10-325
更新日期:2011-10-31 00:00:00
abstract:BACKGROUND:Hypoglycaemia is a poor prognostic indicator in severe malaria. Intravenous infusions are rarely feasible in rural areas. The efficacy of sublingual sugar (SLS) was assessed in a pilot randomized controlled trial among hypoglycaemic children with severe malaria in Mali. METHODS:Of 151 patients with presumed...
journal_title:Malaria journal
pub_type: 杂志文章,随机对照试验
doi:10.1186/1475-2875-7-242
更新日期:2008-11-23 00:00:00