As HIV becomes a chronic infection, an increasing number of HIV-infected patients are travelling to malaria-endemic areas. Association of malaria with HIV/AIDS can be clinically severe. Severe falciparum malaria is a medical emergency that is associated with a high mortality, even when treated in an Intensive Care Unit. This article describes two cases of HIV-positive patients, who returned from malaria-endemic areas and presented a parasitaemia > 5% of erythrocytes and clinical signs of severe falciparum malaria, both with > 350 CD4 cell count/μl, absence of chemoprophylaxis and successful response. Factors like drug interactions and the possible implication of anti-malarial therapy bioavailability are all especially interesting in HIV-malaria co-infections.
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http://dx.doi.org/10.1186/1475-2875-11-136 | DOI Listing |
PLOS Glob Public Health
December 2024
Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Allschwil, Switzerland.
Knowing when and where infected mosquitoes bite is required for estimating accurate measures of malaria risk, assessing outdoor exposure, and designing intervention strategies. This study combines secondary analyses of a human behaviour survey and an entomological survey carried out in the same area to estimate human exposure to malaria-infected Anopheles mosquitoes throughout the night in rural villages in south-eastern Tanzania. Mosquitoes were collected hourly from 6PM to 6AM indoors and outdoors by human landing catches in 2019, and tested for Plasmodium falciparum sporozoite infections using ELISA.
View Article and Find Full Text PDFSci Rep
December 2024
Interdisciplinary Centre of Medical Research of Franceville (CIRMF), Franceville, Gabon.
Malaria is a significant public health challenge in Gabon, with high prevalence rates in rural and semi-urban areas. This study investigated Plasmodium infection prevalence among outpatients at a medical laboratory in Franceville, Gabon, in 2020. Data from 500 patients were analyzed, revealing an overall infection rate of 33.
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December 2024
Leiden University Center for Infectious Diseases (LUCID), Leiden University Medical Center (LUMC), Albinusdreef 2, 2333ZA, Leiden, Zuid-Holland, The Netherlands.
Antibody glycosylation patterns can affect antibody functionality and thereby contribute to protection against invading pathogens. During pregnancy, maternal antibodies can be transferred through the placenta and contribute to modulating both the mother's and her child's immune responses. Although several studies of IgG glycosylation during pregnancy have been carried out, very few cohorts studied were from sub-Saharan Africa, where exposure to microorganisms and parasites is high.
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December 2024
Faculty of Infectious & Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK.
Plasmodium malariae parasites are widely observed across the tropics and sub-tropics. This slow-growing species, known to maintain chronic asymptomatic infections, has been associated with reduced antimalarial susceptibility. We analyse 251 P.
View Article and Find Full Text PDFParasit Vectors
December 2024
Department of Tropical Diseases, Faculty of Naval Medicine, Naval Medical University, Shanghai, 200433, China.
Background: The frequent communication between African and Southeast Asian (SEA) countries has led to the risk of imported malaria cases in the China-Myanmar border (CMB) region. Therefore, tracing the origins of new malaria infections is important in the maintenance of malaria-free zones in this border region. A new genotyping tool based on a robust mitochondrial (mt) /apicoplast (apico) barcode was developed to estimate genetic diversity and infer the evolutionary history of Plasmodium falciparum across the major distribution ranges.
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