Infectivity of symptomatic malaria patients to <em>Anopheles farauti</em> colony mosquitoes in Papua New Guinea (Publications)
to mosquitoes is an understudied bottleneck in the transmission of malaria. Direct membrane feeding assays (DMFA) allow detailed malaria transmission studies from humans to mosquitoes. Especially for Plasmodium [...] were performed with venous blood collected from rapid diagnostic test (RDT) positive symptomatic malaria patients and subsequently analysed by light microscopy and quantitative real time polymerase chain
Emulator-based Bayesian optimization for efficient multi-objective calibration of an individual-based model of malaria (Publications)
framework employing Gaussian process or machine learning emulator functions to calibrate a complex malaria transmission simulator. We demonstrate our approach by optimizing over a high-dimensional parameter [...] a portfolio of multiple fitting objectives built from datasets capturing the natural history of malaria transmission and disease progression. Our approach quickly outperforms previous calibrations, yielding
Revisiting the effect of pharmaceuticals on transmission stage formation in the malaria parasite <em>Plasmodium falciparum</em> (Publications)
Malaria parasites rely on specialized stages, called gametocytes, to ensure human-to-human transmission. The formation of these sexual precursor cells is initiated by commitment of blood stage parasites [...] vivo. These observations suggest that therapeutic interventions may promote gametocytogenesis and malaria transmission. Here, we engineered a P. falciparum reporter line to quantify sexual commitment rates [...] rates after exposure to antimalarials and other pharmaceuticals commonly...
Multi-insecticide resistant malaria vectors in the field remain susceptible to malathion, despite the presence of <em>Ace1</em> point mutations (Publications)
Insecticide resistance in Anopheles mosquitoes is seriously threatening the success of insecticide-based malaria vector control. Surveillance of insecticide resistance in mosquito populations and identifying the
<em>Plasmodium falciparum</em> parasite prevalence in East Africa: updating data for malaria stratification (Publications)
Burden High Impact (HBHI) strategy for malaria encourages countries to use multiple sources of available data to define the sub-national vulnerabilities to malaria risk, including parasite prevalence. Here [...] to provide a more contemporary understanding of the sub-national malaria prevalence stratification across the sub-region for 2019. Malaria prevalence data from surveys undertaken between January 2010 and
Detection of asymptomatic malaria in Asian countries: a meta-analysis of diagnostic accuracy (Publications)
Background: Achieving malaria elimination requires the targeting of the human reservoir of infection, including those patients with asymptomatic infection. The objective was to synthesise evidence on the [...] accuracy of the rapid- onsite diagnostic tests (RDTs) and microscopy for the detection of asymptomatic malaria as part of the surveillance activities in Asian countries. Methods: This was a meta-analysis of [...] that evaluated the diagnostic per- formance of RDTs and microscopy for...
Multi-dose priming regimens of PfSPZ vaccine: safety and efficacy against controlled human malaria infection in Equatoguinean adults (Publications)
Tolerability, safety, immunogenicity, and vaccine efficacy (VE) against homologous-controlled human malaria infection (CHMI) 6-7 weeks after vaccination were assessed to down-select the best regimen. All four
