Age and geographic patterns of Plasmodium falciparum malaria infection in a representative sample of children living in Burkitt lymphoma-endemic areas of northern Uganda

Autor: Marlena Maziarz, Isaac Otim, Patrick Kerchan, Samuel Kirimunda, Robert J. Biggar, Benjamin Emmanuel, Tobias Kinyera, James J. Goedert, Moses M. Joloba, Paul Kagwa, Steven J. Reynolds, Ismail D. Legason, Hadijah Nabalende, Andrew W. Bergen, Ambrose Talisuna, Martin D. Ogwang, Sam M. Mbulaiteye, Ruth M. Pfeiffer, Kishor Bhatia
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Malaria Journal
ISSN: 1475-2875
Popis: Background Falciparum malaria is an important risk factor for African Burkitt lymphoma (BL), but few studies have evaluated malaria patterns in healthy BL-age children in populations where both diseases are endemic. To obtain accurate current data, patterns of asymptomatic malaria were investigated in northern Uganda, where BL is endemic. Methods Between 2011 and 2015, 1150 apparently healthy children under 15 years old were sampled from 100 villages in northern Uganda using a stratified, multi-stage, cluster survey design. Falciparum malaria prevalence (pfPR) was assessed by questionnaire, rapid diagnostic test (RDT) and thick film microscopy (TFM). Weighted pfPR and unadjusted and adjusted associations of prevalence with covariates were calculated using logistic models and survey methods. Results Based on 1143 children successfully tested, weighted pfPR was 54.8% by RDT and 43.4% by TFM. RDT sensitivity and specificity were 97.5 and 77.8%, respectively, as compared to TFM, because RDT detect malaria antigens, which persist in peripheral blood after clinical malaria, thus results based on RDT are reported. Weighted pfPR increased from 40% in children aged under 2 years to 61.8% in children aged 6–8 years (odds ratio 2.42, 95% confidence interval (CI) 1.26–4.65), then fell slightly to 49% in those aged 12–15 years. Geometric mean parasite density was 1805.5 parasites/µL (95% CI 1344.6–2424.3) among TFM-positive participants, and it was higher in children aged
Databáze: OpenAIRE