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Ethiopia

Determinants of malaria treatment delay in northwestern zone of Tigray region, Northern Ethiopia, 2018

November 11, 2019 - 16:20 -- Open Access
Author(s): 
Afewerki Tesfahunegn, Dawit Zenebe and Alefech Addisu
Reference: 
Malaria Journal 2019 18:358, 9 November 2019

Globally malaria affects 212 million people and causes 438,000 deaths each year. Ensuring early and timely treatment of malaria is important for preventing and controlling of life-threatening complications and further transmission. 

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The effect of ivermectin® on fertility, fecundity and mortality of Anopheles arabiensis fed on treated men in Ethiopia

November 11, 2019 - 16:16 -- Open Access
Author(s): 
Wondemeneh Mekuriaw, Meshesha Balkew, Louisa A. Messenger, Delenasaw Yewhalaw, Adugna Woyessa and Fekadu Massebo
Reference: 
Malaria Journal 2019 18:357, 8 November 2019

Insecticide resistance is a growing threat to malaria vector control. Ivermectin, either administered to humans or animals, may represent an alternate strategy to reduce resistant mosquito populations. The aim of this study was to assess the residual or delayed effect of administering a single oral dose of ivermectin to humans on the survival, fecundity and fertility of Anopheles arabiensis in Ethiopia.

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Utilization of key preventive measures for pregnancy complications and malaria among women in Jimma Zone, Ethiopia

November 8, 2019 - 16:57 -- Open Access
Author(s): 
Mariame Ouedraogo, Jaameeta Kurji, Lakew Abebe, Ronald Labonté, Sudhakar Morankar, Kunuz Haji Bedru, Gebeyehu Bulcha, Muluemebet Abera, Beth K. Potter, Marie-Hélène Roy-Gagnon & Manisha A. Kulkarni
Reference: 
BMC Public Health volume 19, Article number: 1443 (2019)

In Ethiopia, malaria infections and other complications during pregnancy contribute to the high burden of maternal morbidity and mortality. Preventive measures are available, however little is known about the factors influencing the uptake of maternal health services and interventions by pregnant women in Ethiopia.

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Spatiotemporal clustering of malaria in southern-central Ethiopia: A community-based cohort study

October 14, 2019 - 15:17 -- Open Access
Author(s): 
Tarekegn Solomon, Eskindir Loha, Wakgari Deressa, Taye Gari, Bernt Lindtjørn
Reference: 
PLoS ONE 14(9): e0222986

Understanding the spatiotemporal clustering of malaria transmission would help target interventions in settings of low malaria transmission. The aim of this study was to assess whether malaria infections were clustered in areas with long-lasting insecticidal nets (LLINs) alone, indoor residual spraying (IRS) alone, or a combination of LLINs and IRS interventions, and to determine the risk factors for the observed malaria clustering in southern-central Ethiopia.

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Prevalence and distribution of G6PD deficiency: implication for the use of primaquine in malaria treatment in Ethiopia

October 8, 2019 - 14:57 -- Open Access
Author(s): 
Eugenia Lo, Daibin Zhong, Beka Raya, Kareen Pestana, Cristian Koepfli, Ming-Chieh Lee, Delenasaw Yewhalaw and Guiyun Yan
Reference: 
Malaria Journal 2019 18:340, 7 October 2019

G6PD enzyme deficiency is a common enzymatic X-linked disorder. Deficiency of the G6PD enzyme can cause free radical-mediated oxidative damage to red blood cells, leading to premature haemolysis. Treatment of Plasmodium vivax malaria with primaquine poses a potential risk of mild to severe acute haemolytic anaemia in G6PD deficient people. In this study, the prevalence and distribution of G6PD mutations were investigated across broad areas of Ethiopia, and tested the association between G6PD genotype and phenotype with the goal to provide additional information relevant to the use of primaquine in malaria treatment.

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Frequent expansion of Plasmodium vivax Duffy Binding Protein in Ethiopia and its epidemiological significance

September 24, 2019 - 15:08 -- Open Access
Author(s): 
Eugenia Lo, Jessica B. Hostetler, Guiyun Yan, et al.
Reference: 
PLoS Negl Trop Dis 13(9): e0007222

Plasmodium vivax invasion of human erythrocytes depends on the Duffy Binding Protein (PvDBP) which interacts with the Duffy antigen.

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Sero-identification of the aetiologies of human malaria exposure (Plasmodium spp.) in the Limu Kossa District of Jimma Zone, South western Ethiopia

September 2, 2019 - 15:27 -- Open Access
Author(s): 
Sindew Mekasha Feleke, Bokretsion Gidey Brhane, Hassen Mamo, Ashenafi Assefa, Adugna Woyessa, Guilherme Maerschner Ogawa and Vitaliano Cama
Reference: 
Malaria Journal 2019 18:292, 27 August 2019

Malaria remains a very important public health problem in Ethiopia. Currently, only Plasmodium falciparum and Plasmodium vivax are considered in the malaria diagnostic and treatment policies. However, the existence and prevalence of Plasmodium ovale spp. and Plasmodium malariae in Ethiopia have not been extensively investigated. The objective of this study was to use a multiplex IgG antibody detection assay to evaluate evidence for exposure to any of these four human malaria parasites among asymptomatic individuals.

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Multiplex serology demonstrate cumulative prevalence and spatial distribution of malaria in Ethiopia

July 23, 2019 - 15:31 -- Open Access
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Author(s): 
Ashenafi Assefa, Ahmed Ali Ahmed, Jimee Hwang, et al.
Reference: 
Malaria Journal 2019 18:246, 22 July 2019

Measures of malaria burden using microscopy and rapid diagnostic tests (RDTs) in cross-sectional household surveys may incompletely describe the burden of malaria in low-transmission settings. This study describes the pattern of malaria transmission in Ethiopia using serological antibody estimates derived from a nationwide household survey completed in 2015.

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Quality of fixed dose artemether/lumefantrine products in Jimma Zone, Ethiopia

July 15, 2019 - 16:14 -- Open Access
Author(s): 
Sileshi Belew, Sultan Suleman, Bart De Spiegeleer, et al.
Reference: 
Malaria Journal 2019 18:236, 15 July 2019

Malaria caused by Plasmodium vivax and Plasmodium falciparum is among the major public health problems in most endemic areas of the world. Artemisinin-based combination therapy (ACT) has been recommended as a first-line treatment for uncomplicated Plasmodium falciparum malaria almost in all endemic regions. Since ineffectively regulated medicines in resource limited settings could favour infiltration of poor quality anti-malarial medicines into pharmaceutical supply chain and jeopardize a positive treatment outcome, regular monitoring of the quality of anti-malarial medicines is critical. Thus, the aim of this study was to assess the quality of fixed dose combination (FDC) artemether (ART)/lumefantrine (LUM) tablets available in Jimma zone, Ethiopia.

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Bio-efficacy and physical integrity of piperonylbutoxide coated combination net (PermaNet® 3.0) against pyrethroid resistant population of Anopheles gambiae s.l. and Culex quinquefasciatus mosquitoes in Ethiopia

July 8, 2019 - 17:01 -- Open Access
Author(s): 
Abaynesh Birhanu, Abebe Asale and Delenasaw Yewhalaw
Reference: 
Malaria Journal 2019 18:224, 4 July 2019

PermaNet® 3.0 is a deltamethrin-treated combination long-lasting insecticidal net with the addition of synergist piperonylbutoxide (PBO) on its roof section. It is designed to overcome the challenge posed by pyrethroid resistant vector populations against mainstream long-lasting insecticidal nets impregnated with pyrethroids only. The objective of this study was to determine insecticide resistance status of Anopheline and Culicine mosquitoes, to evaluate the bio-efficacy of PermaNet® 3.0 nets and to assess household factors affecting the physical integrity of PermaNet® 3.0 after 3 years of use.

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