The epidemiology of malaria in urban environments is poorly characterized, yet increasingly problematic. We conducted an unmatched case-control study of risk factors for malarial anemia with high parasitemia in urban Kisumu, Kenya, from June 2002 through February 2003. Cases (n = 80) were hospital patients with a hemoglobin level < or = 8 g/dL and a Plasmodium parasite density > or = 10,000/microL. Controls (n = 826) were healthy respondents to a concurrent citywide knowledge, attitude, and practice survey. Children who reported spending at least one night per month in a rural area were especially at risk (35% of cases; odds ratio = 9.3, 95% confidence interval [CI] = 4.4-19.7, P < 0.0001), and use of mosquito coils, bed net ownership, and house construction were non-significant, potentially indicating that malaria exposure during rural travel comprises an important element of risk. Control of severe malaria in an urban setting may be complicated by Plasmodium infections acquired elsewhere. Epidemiologic studies of urban malaria in low transmission settings should take travel history into account.
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http://dx.doi.org/10.4269/ajtmh.2010.09-0047 | DOI Listing |
West Afr J Med
August 2024
Department of Haematology and Immunology, University of Nigeria Teaching Hospital Ituku-Ozalla, Enugu, Nigeria.
Background: There are reports of a high prevalence of maternal peripheral and placental malarial parasitaemia (MP) in southeastern Nigeria following the two-dose regimen of sulphadoxine-pyrimethamine (SP) for intermittent preventive treatment (IPT) of malaria in pregnancy.
Objective: To compare the effectiveness of monthly versus two-dose regimens of SP for IPT of malaria in pregnancy in Enugu, south-eastern Nigeria.
Methods: A randomized controlled trial involving antenatal clinic attendees at the University of Nigeria Teaching Hospital (UNTH), Ituku-Ozalla, Enugu, Nigeria.
In patients presenting with post-malarial anemia following intravenous artesunate treatment, post-artesunate delayed hemolysis should be considered in the differential diagnosis, even in endemic settings. Close monitoring for signs of delayed hemolysis in patients previously treated with intravenous artesunate for severe malaria, regardless of their malaria exposure history or geographic location is crucial.
View Article and Find Full Text PDFMalar J
December 2024
School of Medical Laboratory Science, Institute of Health, Jimma University, Jimma, Ethiopia.
medRxiv
November 2024
Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom.
Background: High-grade resistance to sulfadoxine-pyrimethamine in East and Southern Africa has prompted numerous trials evaluating intermittent preventive treatment in pregnancy (IPTp) with dihydroartemisinin-piperaquine as an alternative to sulfadoxine-pyrimethamine.
Methods: We conducted individual participant data meta-analyses of randomised trials comparing IPTp with dihydroartemisinin-piperaquine to sulfadoxine-pyrimethamine on maternal, birth, and infant outcomes. We searched the WHO International Clinical Trials Registry Platform, ClinicalTrials.
Malar J
December 2024
Ryan White Center for Pediatric Infectious Diseases and Global Health, Indiana University School of Medicine, Indiana, USA.
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