PCR correction strategies for malaria drug trials: updates and clarifications (Publications)
Malaria drug trials conducted in endemic areas face a major challenge in their analysis because it is difficult to establish whether parasitaemia in blood samples collected after treatment indicate drug [...] public and private bodies who are working on the development, deployment, and surveillance of new malaria drugs. We aim to promote discussion around these issues and argue for the adoption of improved s
Multiplicity of asymptomatic <em>Plasmodium falciparum </em>infections and risk of clinical malaria: a systematic review and pooled analysis of... (Publications)
subsequent febrile malaria or with an increased risk. CONCLUSIONS: The number of clones in asymptomatic P. falciparum infections is associated with different risks of subsequent clinical malaria depending on [...] BACKGROUND: The malaria parasite Plasmodium falciparum holds an extensive genetic polymorphism. In this pooled analysis, we investigate how the multiplicity, i.e. the number of co-infecting clones, in [...] in asymptomatic P. falciparum infections affects the subsequent risk of...
Differential impact of malaria control interventions on <em>P. falciparum</em> and <em>P. vivax</em> infections in young Papua New Guinean children (Publications)
children and the key risk factors for malaria infection and illness in 2013. RESULTS: Between 2006 and 2008, P. falciparum infection prevalence, molFOB, and clinical malaria episodes reduced by 47%, 59% and [...] INTRODUCTION: As malaria transmission declines, understanding the differential impact of intensified control on Plasmodium falciparum relative to Plasmodium vivax and identifying key drivers of ongoing [...] cohort, children aged 1-5 years were actively monitored for infection and...
Investigating the drivers of the spatio-temporal patterns of genetic differences between <em>Plasmodium falciparum</em> malaria infections in Kilifi... (Publications)
Knowledge of how malaria infections spread locally is important both for the design of targeted interventions aiming to interrupt malaria transmission and the design of trials to assess the interventions [...] to account for the observed patterns. The mean geographic distance between parent and offspring malaria infections for the base model was 0.5 km (95% CI 0.3-1.5), for a distribution with 68% of distances
Strengthening surveillance systems for malaria elimination by integrating molecular and genomic data (Publications)
elimination efforts are currently going on with the objective of reducing malaria morbidity and mortality by 90% and malaria elimination in at least 35 countries by 2030. Strengthening surveillance systems [...] Unprecedented efforts in malaria control over the last 15 years have led to a substantial decrease in both morbidity and mortality in most endemic settings. However, these progresses have stalled over [...] such as polymerase chain reaction (PCR) and quantitative PCR (qPCR) are...
The development and evaluation of a self-marking unit to estimate malaria vector survival and dispersal distance (Publications)
diseases such as malaria. Mosquito mark-release-recapture (MMRR) experiments are a popular method of measuring the survival and dispersal of disease vectors; however, examples with African malaria vectors are [...] This study demonstrates the successful use of a self-marking device in an MMRR study with African malaria vectors. This method may be useful in investigating population structure and dispersal of mosquitoes
Sub-national stratification of malaria risk in mainland Tanzania: a simplified assembly of survey and routine data (Publications)
Recent malaria control efforts in mainland Tanzania have led to progressive changes in the prevalence of malaria infection in children, from 18.1% (2008) to 7.3% (2017). As the landscape of malaria transmission [...] incidence and fever test positivity rate for the period 2016-2017 as well as confirmed malaria incidence and malaria positivity in pregnant women for the period 2015-2017 were obtained from routine district [...] survey malaria information was developed. This pragmatic approach can...
Antigen-stimulated PBMC transcriptional protective signatures for malaria immunization (Publications)
accelerates and streamlines the development of vaccines. RTS,S/AS01E, the most clinically advanced malaria vaccine, has moderate efficacy in African children. In contrast, immunization with sporozoites under [...] cohorts and three African countries participating in an RTS,S/AS01E pediatric phase 3 trial and malaria-naïve individuals participating in a CPS trial. We identified both preimmunization and postimmunization
Future use-cases of vaccines in malaria control and elimination (Publications)
protection. Here we discuss the history of malaria vaccines and suggest some future use-cases for future malaria vaccines that will support achieving malaria health goals in different settings. [...] well as the development and use of new interventions. A malaria vaccine has long been considered a possible new intervention to aid malaria burden reduction. However, after decades of development, only one [...] consider the use-cases and health targets of future malaria vaccines. These must be...