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Clarification of factors associated with post-artesunate delayed hemolysis (PADH): analysis of 327 patients with severe imported Plasmodium falciparum malaria in France.
Travel Med Infect Dis
January 2025
Centre National de Référence du Paludisme, Paris, France; Centre de Recherche en Epidémiologie et Santé des Populations (CESP), INSERM U1018, Paris, France; Université Paris-Saclay, Service des Maladies infectieuses et tropicales, APHP, Hôpital Bicêtre, Le Kremlin-Bicêtre, France; Société Française de Médecine des Voyages.
Background: Post-Artesunate delayed hemolysis (PADH) occurs in approximately 15% of treated patients 2 to 3 weeks after artesunate administration. Identifying risk markers for PADH would help predict which patients are at higher risk.
Methods: In this prospective national cohort study conducted in a non-malaria endemic area from 2011 to 2016, a Cox proportional hazards model was used to assess the association between clinical and biological data available at Day 0 and the occurrence of PADH within 30 days of artesunate administration.
Assessing the Feasibility of Using a Multiplex Serological Assay to Conduct Serosurveillance for Malaria Exposure in Deployed Military Personnel.
Trop Med Infect Dis
January 2025
Biologics Research & Development Branch, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA.
Reproducibly assessing malaria exposure is critical for force health protection for military service members deployed to malaria-endemic regions as well as for civilians making public health decisions and evaluating malaria eradication efforts. However, malaria disease surveillance is challenged by under-reporting, natural immunity, and chemoprophylaxis, which can mask malaria exposure and lead to an underestimation of malaria prevalence. In this study, we determined the feasibility of using a serosurveillance-based approach to measure Anopheles vector exposure, Plasmodium sporozoite exposure, and blood-stage parasitemia using a multiplex serological panel.
View Article and Find Full Text PDFSevere knowlesi malaria with acute neurocognitive impairment: A case report.
IJID Reg
March 2025
Division of Infectious Disease and Tropical Medicine, Department of Internal Medicine, Abdoel Wahab Sjahranie General Hospital/Mulawarman University Faculty of Medicine, Samarinda, Indonesia.
infection in Indonesia has been reported from Sumatera and Kalimantan Island. has the shortest asexual replication cycle of all species, leading to rapidly increased parasitemia levels; however, it usually does not cause high parasitemia. It was reported a severe knowlesi malaria case in a 41-year-old male patient in Samarinda, East Kalimantan Province, Indonesia.
View Article and Find Full Text PDFImmune regulation of host energy metabolism and periodicity of malaria parasites.
Philos Trans R Soc Lond B Biol Sci
January 2025
Laboratory of Immunopathology - Instituto René Rachou, Fundação Oswaldo Cruz - Minas, Belo Horizonte 30190-002, Brazil.
The synchronization of parasites as they replicate within red blood cells of their vertebrate host remains largely unexplored. Understanding this synchronization could reveal how parasites optimize their lifecycle to maximize transmission, evade the immune response and maximize energy acquisition. Rhythmic replication fulfils some criteria of an endogenous oscillator with time of day cues potentially provided by temperature, oxygen levels, hormones and/or nutrient availability.
View Article and Find Full Text PDFDelayed post-juvenile moult in malaria-infected Eurasian blackcaps.
Proc Biol Sci
January 2025
Department of Biodiversity, Ecology and Evolution, Complutense University of Madrid, Madrid, Spain.
Parasites have their strongest impact on fitness when host defences deplete resources needed for other critical life-history stages, such as development, breeding or migration. Among birds, one greatly neglected stage that could be altered by parasites is post-juvenile moult (PJM), through which yearling juvenile birds replace their fast-generated, low-quality juvenile feathers with adult-like feathers after leaving the nest. The earlier the birds complete PJM, the earlier they will be prepared to withstand forthcoming challenges, such as adverse winter conditions or migration.
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