High levels of genetic diversity of <em>Plasmodium falciparum</em> populations in Papua New Guinea despite variable infection prevalence (Publications)
obstacle to malaria control. Here, we investigate the relationship between local variation in malaria epidemiology and parasite genetic diversity in Papua New Guinea (PNG). Cross-sectional malaria surveys [...] surveys were performed in 14 villages spanning four distinct malaria-endemic areas on the north coast, including one area that was sampled during the dry season. High-resolution msp2 genotyping of 2,147 blood
Aktueller Malariaschutz bei Kurzzeitaufenthalt (Publications)
average of 800 malaria cases are recorded annually in Germany. One person in a hundred dies of the disease. Travel advice given by experienced physicians is essential to raise awareness of malaria risk in endemic [...] endemic areas. Rational mosquito protection on skin and textiles reduces the risk of malaria and other arthropod-transmitted diseases (e. g. dengue fever). Regular intake of an antimalarial drugs to suppress [...] doctor after taking the SET as quickly as possible. These elements...
Defining the next generation of <em>Plasmodium vivax</em> diagnostic tests for control and elimination: target product profiles (Publications)
prevalence of malaria has decreased over the past fifteen years, but similar gains have not been realized against Plasmodium vivax because this species is less responsive to conventional malaria control i [...] interventions aimed principally at P. falciparum. Approximately half of all malaria cases outside of Africa are caused by P. vivax. This species places dormant forms in human liver that cause repeated clinical [...] clinical attacks without involving another mosquito bite. The diagnosis...
The relative roles of ANC and EPI in the continuous distribution of LLINs: a qualitative study in four countries (Publications)
through EPI because of a) stronger linkages and involvement between malaria and reproductive health programmes, as compared to malaria and EPI, and b) more complete programme monitoring for ANC-based d [...] Background: The continuous distribution of long-lasting insecticidal nets (LLINs) for malaria prevention, through the antenatal care (ANC) and the Expanded Programme on Immunizations (EPI), is recommended [...] sub-national, and facility-level health staff, and were selected to capture a...
On-target, dual aminopeptidase inhibition provides cross-species antimalarial activity (Publications)
known as MMV1557817, and show that it targets multiple stages of the malaria parasite lifecycle, is active in a preliminary mouse malaria model, and has a novel mechanism of action. Excitingly, resistance [...] To combat the global burden of malaria, development of new drugs to replace or complement current therapies is urgently required. Here, we show that the compound MMV1557817 is a selective, nanomolar inhibitor [...] digestion in asexual parasites. MMV1557817 can kill sexual-stage P....
Spatial effects on the multiplicity of <em>Plasmodium falciparum</em> infections (Publications)
homogeneous transmission used in mathematical transmission models for malaria. In the present study an individual-based mathematical malaria transmission model that incorporates multiple parasite clones, variable [...] prevalence or multiplicity of infection (MOI). In traditionally highly malaria endemic regions where most of the population harbours malaria parasites, humans are often infected with multiple parasite clones [...] As malaria is being pushed back on many frontiers and global case...
Pre-referral rectal artesunate: no cure for unhealthy systems (Publications)
rectal artesunate in settings where malaria mortality remains high. Without improving the entire continuum of care, children will continue to die from severe malaria and promising interventions will fail [...] Pre-referral rectal artesunate suppositories can save the lives of children with severe malaria if patients receive adequate post-referral care. A multi-country randomised controlled trial reporting on [...] In October, 2022, we reported on the findings of the Community Access to Rectal...
Using a mobile nanopore sequencing lab for end-to-end genomic surveillance of <em>Plasmodium falciparum</em>: a feasibility study (Publications)
Genomic epidemiology holds promise for malaria control and elimination efforts, for example by informing on Plasmodium falciparum genetic diversity and prevalence of mutations conferring anti-malarial [...] drug resistance. Limited sequencing infrastructure in many malaria-endemic areas prevents the rapid generation of genomic data. To address these issues, we developed and validated assays for P. falciparum [...] resistance markers. We developed a bioinformatics workflow that allows genotyping...
Molecular assays for antimalarial drug resistance surveillance: a target product profile (Publications)
Antimalarial drug resistance is a major constraint for malaria control and elimination efforts. Artemisinin-based combination therapy is now the mainstay for malaria treatment. However, delayed parasite clearance [...] in the Greater Mekong Sub region and may emerge or spread to other malaria endemic regions. This spread is of great concern for malaria control programmes, as no alternatives to artemisinin-based combination [...] techniques can be standardised, and identify the requirements for...
The N-terminal domain of <em>Plasmodium falciparum</em> circumsporozoite protein represents a target of protective immunity (Publications)
serum samples from people living in malaria-endemic regions. Importantly, recognition of the short N-terminal peptide (PfCS(65-110)) by sera from children living in a malaria-endemic region was associated with [...] N-terminal domain of the circumsporozoite protein (CSP) has been largely neglected in the search for a malaria vaccine in spite of being a target of inhibitory antibodies and protective T cell responses in mice [...] from disease. Taken together, these results underline the...