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Open AccessDistinct transcriptomic signatures define febrile malaria depending on initial infective states, asymptomatic or uninfected
Cumulative malaria parasite exposure in endemic regions often results in the acquisition of partial immunity and asymptomatic infections. There is limited information on how host-parasite interactions mediate ...
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Article
Open AccessExtracellular vesicles could be a putative posttranscriptional regulatory mechanism that shapes intracellular RNA levels in Plasmodium falciparum
Plasmodium falciparum secretes extracellular vesicles (PfEVs) that contain parasite-derived RNA. However, the significance of the secreted RNA remains unexplored. Here, we compare secreted and intracellular RNA f...
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Open AccessSpatial heterogeneity of low-birthweight deliveries on the Kenyan coast
Understanding spatial variations in health outcomes is a fundamental component in the design of effective, efficient public health strategies. Here we analyse the spatial heterogeneity of low birthweight (LBW)...
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Open AccessMaintenance of high temporal Plasmodium falciparum genetic diversity and complexity of infection in asymptomatic and symptomatic infections in Kilifi, Kenya from 2007 to 2018
High levels of genetic diversity are common characteristics of Plasmodium falciparum parasite populations in high malaria transmission regions. There has been a decline in malaria transmission intensity over 12 y...
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Controlled Human Malaria Infection Studies in Africa—Past, Present, and Future
Controlled human infection studies have contributed significantly to the understanding of pathogeneses and treatment of infectious diseases. In malaria, deliberately infecting humans with malaria parasites was...
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Open AccessEthical considerations around volunteer payments in a malaria human infection study in Kenya: an embedded empirical ethics study
Human Infection Studies (HIS) have emerged as an important research approach with the potential to fast track the global development of vaccines and treatments for infectious diseases, including in low resourc...
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Open AccessFactors influencing health workers’ compliance with outpatient malaria ‘test and treat’ guidelines during the plateauing performance phase in Kenya, 2014–2016
Health workers’ compliance with outpatient malaria ‘test and treat’ guidelines has improved since 2010 but plateaued from 2014 at suboptimal levels in Kenya. This study examined the factors associated with hig...
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Open AccessMalaria hospitalisation in East Africa: age, phenotype and transmission intensity
Understanding the age patterns of disease is necessary to target interventions to maximise cost-effective impact. New malaria chemoprevention and vaccine initiatives target young children attending routine imm...
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Open AccessSeven-year kinetics of RTS, S/AS01-induced anti-CSP antibodies in young Kenyan children
RTS,S/AS01, the leading malaria vaccine has been recommended by the WHO for widespread immunization of children at risk. RTS,S/AS01-induced anti-CSP IgG antibodies are associated with the vaccine efficacy. Her...
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Open AccessTracking the introduction and spread of SARS-CoV-2 in coastal Kenya
Genomic surveillance of SARS-CoV-2 is important for understanding both the evolution and the patterns of local and global transmission. Here, we generated 311 SARS-CoV-2 genomes from samples collected in coast...
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Open AccessUnderstanding the benefits and burdens associated with a malaria human infection study in Kenya: experiences of study volunteers and other stakeholders
Human infection studies (HIS) that involve deliberately infecting healthy volunteers with a pathogen raise important ethical issues, including the need to ensure that benefits and burdens are understood and ap...
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Open AccessTemporal trends of SARS-CoV-2 seroprevalence during the first wave of the COVID-19 epidemic in Kenya
Observed SARS-CoV-2 infections and deaths are low in tropical Africa raising questions about the extent of transmission. We measured SARS-CoV-2 IgG by ELISA in 9,922 blood donors across Kenya and adjusted for ...
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Open AccessThe Plasmodium falciparum Rh5 invasion protein complex reveals an excess of rare variant mutations
The invasion of the red blood cells by Plasmodium falciparum merozoites involves the interplay of several proteins that are also targets for vaccine development. The proteins PfRh5-PfRipr-PfCyRPA-Pfp113 assemble ...
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Open AccessPrevalence and predictors of vitamin D deficiency in young African children
Children living in sub-Saharan Africa have a high burden of rickets and infectious diseases, conditions that are linked to vitamin D deficiency. However, data on the vitamin D status of young African children ...
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Open AccessSpatial–temporal clustering of malaria using routinely collected health facility data on the Kenyan Coast
The over-distributed pattern of malaria transmission has led to attempts to define malaria “hotspots” that could be targeted for purposes of malaria control in Africa. However, few studies have investigated th...
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Malaria is a cause of iron deficiency in African children
Malaria and iron deficiency (ID) are common and interrelated public health problems in African children. Observational data suggest that interrupting malaria transmission reduces the prevalence of ID1. To test th...
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Open AccessEndemic chikungunya fever in Kenyan children: a prospective cohort study
Chikungunya fever (CHIKF) was first described in Tanzania in 1952. Several epidemics including East Africa have occurred, but there are no descriptions of longitudinal surveillance of endemic disease. Here, we...
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Open AccessAuthor Correction: Investigating the drivers of the spatio-temporal patterns of genetic differences between Plasmodium falciparum malaria infections in Kilifi County, Kenya
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
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Malaria parasites hide in plain sight in the dry season
Plasmodium falciparum parasites survive the dry season by accepting increased clearance rates through the host spleen, which leads to a persistent lower-level infection.
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Open AccessBuilding momentum for malaria vaccine research and development: key considerations
To maintain momentum towards improved malaria control and elimination, a vaccine would be a key addition to the intervention toolkit. Two approaches are recommended: (1) promote the development and short to me...