Clonal expansion of artemisinin-resistant <em>Plasmodium falciparum</em> in Uganda is associated with substandard treatment practices (Publications)
the frame of the Community Access to Rectal Artesunate for Malaria project, blood samples were collected from children with signs of severe malaria before and after RAS implementation. K13 polymorphisms were [...] a driver of this recent emergence. Rectal artesunate (RAS) as pre-referral treatment for severe malaria in children was implemented in 2019 in Northern Uganda. The objective of this study was to determine
Evaluation of anopheline diversity and abundance across outdoor collection schemes utilizing cdc light traps in Nchelenge District, Zambia (Publications)
In the global fight against malaria, standard vector control methods such as indoor residual spraying (IRS) and insecticide-treated nets (ITNs) are intended to protect inside residential structures and [...] may be exposed to outdoors. Nchelenge District in northern Zambia experiences persistently high malaria transmission even with ITNs and IRS in place. However, very few studies have examined outdoor vector [...] including a number of infectious An. funestus, may partially explain the...
Estimating the duration of Plasmodium falciparum infection from trials of indoor residual spraying (Publications)
cross-sectional survey data collected from three historical trials of indoor residual spraying against malaria: one from two contiguous districts in Tanzania-Kenya (Pare Taveta) carried out in 1954, the others [...] showed considerable variation but no general age trend. There was also no clear relationship between malaria endemicity and infection duration. Analyses of successive sampling from the same individuals with [...] areas. Periods of several years may be required to evaluate long-term...
Population pharmacokinetics of the antimalarial amodiaquine: a pooled analysis to optimize dosing (Publications)
Amodiaquine plus artesunate is the recommended antimalarial treatment in many malaria-endemic countries. However, pediatric doses are largely based on a linear extrapolation from adult doses. We pooled [...] amodiaquine, to optimize the dose across all age groups. Adults and children with uncomplicated malaria received daily weight-based doses of amodiaquine or artesunate-amodiaquine over three days. Plasma [...] 22.4% (15.6 - 31.9%) lower at the start of treatment than during convalescence,...
High proportions of asymptomatic and submicroscopic <em>Plasmodium vivax </em>infections in a peri-urban area of low transmission in the Brazilian... (Publications)
regional elimination, it is important to investigate the role of this asymptomatic reservoir in malaria transmission in peri-urban areas. This study aimed to estimate the prevalence of Plasmodium spp. [...] conducted including all inhabitants in a peri-urban area of Manaus, western Amazonas State, Brazil. Malaria parasites were detected by light microscopy (LM) and qPCR. Sexual stages of Plasmodium spp. were [...] carried gametocytes and presented low asexual parasitemia. This reservoir actively...
Further development of simulations of Plasmodium falciparum interventions and their integration with the needs of stakeholders (Projects)
https://www.swisstph.ch/en/projects/project-detail/project/further-development-of-simulations-of-plasmodium-falciparum-interventions-and-their-integration-with-the-needs-of-stakeholders
platform for comparing, fitting, and evaluating different individual-based stochastic simulations of malaria epidemiology. Aims In the next phase of the project, we propose to exploit the functionality of this [...] potential clients, and develop capacity to anticipate and react promptly to requests from the R & D and malaria intervention communities.
dUTPase as a platform for antimalarial drug design: structural basis for the selectivity of a class of nucleoside inhibitors (Publications)
route for therapeutic intervention against malaria. Here we report inhibition and structural studies on the deoxyuridine nucleotidohydrolase from the malaria parasite Plasmodium falciparum (PfdUTPase)
Delayed anemia after treatment with injectable artesunate in the democratic republic of the Congo: a manageable issue (Publications)
treatment of severe malaria. A total of 350 patients (215 [61.4%] < 5 years of age and 135 [38.6%] > /= 5 years of age) were followed-up after treatment with injectable artesunate for severe malaria in hospitals
The epidemiology of multiple <em>Plasmodium falciparum</em> infections. 7. Dynamics of multiple <em>Plasmodium falciparum </em>infections in infants... (Publications)
The force of infection and recovery rate for malaria in infants in a highly endemic area of Tanzania were analysed using polymerase chain reaction-restriction fragment length polymorphism genotyping of [...] recovery rates were in children under 4 months of age. The higher susceptibility of infants to clinical malaria in comparison with older children, in areas of very high transmission, may be largely a consequence
Trisubstituted pyrimidines as efficacious and fast-acting antimalarials (Publications)
mouse model of malaria. The most promising compound (13) showed a reduction in parasitemia of 96% when dosed at 30 mg/kg orally once a day for 4 days in the P. berghei mouse model of malaria. It also demonstrated