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Burkina Faso

The effect of malaria on haemoglobin concentrations: a nationally representative household fixed-effects study of 17,599 children under 5 years of age in Burkina Faso

November 18, 2021 - 10:25 -- Open Access
Author(s): 
Tim Starck, Caroline A. Bulstra, Halidou Tinto, Toussaint Rouamba, Ali Sie, Thomas Jaenisch and Till Bärnighausen
Reference: 
Malaria Journal 2021 20:416, 23 October 2021

Although the association between malaria and anaemia is widely studied in patient cohorts, the population-representative causal effects of malaria on anaemia remain unknown. This study estimated the malaria-induced decrease in haemoglobin levels among young children in malaria-endemic Burkina Faso.

Malaria and curable sexually transmitted and reproductive tract coinfection among pregnant women in rural Burkina Faso

November 10, 2021 - 20:57 -- Open Access
Author(s): 
Lingani M, Zango, Dramaix M, et al.
Reference: 
Trop Med Health. 2021 Nov 4;49(1):90

Malaria and sexually transmitted/reproductive tract infections (STI/RTI) are leading and preventable causes of low birthweight in sub-Saharan Africa. Reducing their impact on pregnancy outcomes requires efficient interventions that can be easily integrated into the antenatal care package. The paucity of data on malaria and STI/RTI coinfection, however, limits efforts to control these infections. This study aimed to determine the prevalence and associated factors of malaria and STI/RTI coinfection among pregnant women in rural Burkina Faso.

Evidence supporting deployment of next generation insecticide treated nets in Burkina Faso: bioassays with either chlorfenapyr or piperonyl butoxide increase mortality of pyrethroid-resistant Anopheles gambiae

October 29, 2021 - 14:17 -- Open Access
Author(s): 
Aristide S. Hien, Dieudonné D. Soma, Roch K. Dabiré, et al.
Reference: 
Malaria Journal 2021 20:406, 18 October 2021

Pyrethroid resistance poses a major threat to the efficacy of insecticide-treated nets (ITNs) in Burkina Faso and throughout sub-Saharan Africa, particularly where resistance is present at high intensity. For such areas, there are alternative ITNs available, including the synergist piperonyl butoxide (PBO)-based ITNs and dual active ingredient ITNs such as Interceptor G2 (treated with chlorfenapyr and alpha-cypermethrin). Before deploying alternative ITNs on a large scale it is crucial to characterize the resistance profiles of primary malaria vector species for evidence-based decision making.

Risk factors associated with house entry of malaria vectors in an area of Burkina Faso with high, persistent malaria transmission and high insecticide resistance

October 23, 2021 - 18:34 -- Open Access
Author(s): 
Jean Baptiste Yaro, Alfred B. Tiono, Anne L. Wilson, et al.
Reference: 
Malaria Journal 2021 20:397, 10 October 2021

In rural Burkina Faso, the primary malaria vector Anopheles gambiae sensu lato (s.l.) primarily feeds indoors at night. Identification of factors which influence mosquito house entry could lead to development of novel malaria vector control interventions. A study was therefore carried out to identify risk factors associated with house entry of An. gambiae s.l. in south-west Burkina Faso, an area of high insecticide resistance.

Small-scale release of non-gene drive mosquitoes in Burkina Faso: from engagement implementation to assessment, a learning journey

October 23, 2021 - 18:12 -- Open Access
Author(s): 
Lea Pare Toe, Nourou Barry, Anselme D. Ky, Souleymane Kekele, Wilfrid Meda, Korotimi Bayala, Mouhamed Drabo, Delphine Thizy and Abdoulaye Diabate
Reference: 
Malaria Journal 2021 20:395, 9 October 2021

Innovative tools are needed to complement the existing approach for malaria elimination. Gene drive mosquitoes are one potential new technology in the control of malaria vectors. Target Malaria is one of the research projects developing this technology, and in July 2019, the project proceeded to an important step for this evaluation pathway: the small-scale release of non-gene drive sterile male mosquitoes in a village in Burkina Faso. In addition to the entomological and laboratory work to prepare for this important milestone, significant community and stakeholder engagement work was done. The existing guidelines on gene drive mosquito provide an overall framework for such engagement work. However, they do not provide a road map on how to proceed or what benchmarks should be used to assess this work.

Spatio-temporal analysis and prediction of malaria cases using remote sensing meteorological data in Diebougou health district, Burkina Faso, 2016-2017

October 16, 2021 - 11:54 -- Open Access
Author(s): 
Bationo CS, Gaudart J, Moiroux N, et al.
Reference: 
Sci Rep. 2021 Oct 8;11(1):20027

Malaria control and prevention programs are more efficient and cost-effective when they target hotspots or select the best periods of year to implement interventions. This study aimed to identify the spatial distribution of malaria hotspots at the village level in Diébougou health district, Burkina Faso, and to model the temporal dynamics of malaria cases as a function of meteorological conditions and of the distance between villages and health centres (HCs). Case data for 27 villages were collected in 13 HCs. Meteorological data were obtained through remote sensing.

Seasonal patterns of malaria, genital infection, nutritional and iron status in non-pregnant and pregnant adolescents in Burkina Faso: a secondary analysis of trial data

October 5, 2021 - 10:45 -- Open Access
Author(s): 
Roberts SA, Brabin L, Tinto H, Gies S, Diallo S, Brabin B
Reference: 
BMC Public Health. 2021 Sep 27;21(1):1764

Adolescents are considered at high risk of developing iron deficiency. Studies in children indicate that the prevalence of iron deficiency increased with malaria transmission, suggesting malaria seasonally may drive iron deficiency. This paper examines monthly seasonal infection patterns of malaria, abnormal vaginal flora, chorioamnionitis, antibiotic and antimalarial prescriptions, in relation to changes in iron biomarkers and nutritional indices in adolescents living in a rural area of Burkina Faso, in order to assess the requirement for seasonal infection control and nutrition interventions.

Combining malaria vaccination with chemoprevention: a promising new approach to malaria control

September 8, 2021 - 16:21 -- Open Access
Author(s): 
Brian Greenwood, Matthew Cairns, Mike Chaponda, R. Matthew Chico, Alassane Dicko, Jean-Bosco Ouedraogo, Kamija S. Phiri, Feiko O. ter Kuile and Daniel Chandramohan
Reference: 
Malaria Journal 2021 20:361, 6 September 2021

Malaria control has stalled in a number of African countries and novel approaches to malaria control are needed for these areas. The encouraging results of a recent trial conducted in young children in Burkina Faso and Mali in which a combination of the RTS,S/AS01E malaria vaccine and seasonal malaria chemoprevention led to a substantial reduction in clinical cases of malaria, severe malaria, and malaria deaths compared with the administration of either intervention given alone suggests that there may be other epidemiological/clinical situations in which a combination of malaria vaccination and chemoprevention could be beneficial.

Insecticide resistance and behavioural adaptation as a response to long-lasting insecticidal net deployment in malaria vectors in the Cascades region of Burkina Faso

September 7, 2021 - 15:23 -- Open Access
Author(s): 
Sanou A, Nelli L, Guelbéogo WM, Cissé F, Tapsoba M, Ouédraogo P, Sagnon N, Ranson H, Matthiopoulos J, Ferguson HM
Reference: 
Sci Rep. 2021 Sep 2;11(1):17569

The decline in malaria across Africa has been largely attributed to vector control using long-lasting insecticidal nets (LLINs). However, this intervention has prompted widespread insecticide resistance (IR) and been associated with changes in mosquito behaviour that reduce their contact with LLINs. The relative importance and rate at which IR and behavioural adaptations emerge are poorly understood. We conducted surveillance of mosquito behaviour and IR at 12 sites in Burkina Faso to assess the magnitude and temporal dynamics of insecticide, biting and resting behaviours in vectors in the 2-year period following mass LLIN distribution. Insecticide resistance was present in all vector populations and increased rapidly over the study period. In contrast, no longitudinal shifts in LLIN-avoidance behaviours (earlier or outdoor biting and resting) were detected.

Intraspecific transcriptome variation and sex-biased expression in Anopheles arabiensis

September 1, 2021 - 15:52 -- Open Access
Author(s): 
Jayaswal V, Ndo C, Ma HC, Clifton B, Pombi M, Cabrera K, Couhet A, Mouline K, Diabaté A, Dabiré R, Ayala D, Ranz JM
Reference: 
Genome Biol Evol. 2021 Aug 25:evab199

The magnitude and functional patterns of intraspecific transcriptional variation in the anophelines, including those of sex-biased genes underlying sex-specific traits relevant for malaria transmission, remain understudied. As a result, how changes in expression levels drive adaptation in these species is poorly understood. We sequenced the female, male, and larval transcriptomes of three populations of Anopheles arabiensis from Burkina Faso.

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