ArticlePLoS neglected tropical diseases2025
Prevalence of Leishmania infection in refugee camps: A serological and molecular study in Gambella and Benishangul-Gumuz, Ethiopia.
Article in PLoS neglected tropical diseases, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 2 of them syntheses that pooled it.
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3 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Prevalence and associated risk factors of human leishmaniasis in sub-Saharan Africa: an umbrella review.BMC infectious diseases · 2025Pooled it
- Effects of breathing training on walking ability and quality of life in patients with multiple sclerosis: systematic review and meta-analysis of randomized controlled trials.Frontiers in immunology · 2025Pooled it
- Entomological survey of sand fly vectors and molecular screening for Leishmania parasite in refugee camps in Ethiopia.Scientific reports · 2026Article
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Abstract
backgroundLeishmaniasis, transmitted by sandflies, causes a severe health threat in East African refugee camps. High mobility, poor conditions and limited healthcare access heighten the risk of visceral leishmaniasis (VL) among refugees. Though, data on infection prevalence is remains limited. This study aims to determine the prevalence of Leishmania infection in refugee camps in Benishangul Gumuz and Gambella regions to improve VL detection and guide effective control strategies in humanitarian settings.
methodsA cross-sectional study was conducted from May to August 2023 in four refugee camps to determine Leishmania infection using DAT and rtPCR on blood samples. Sociodemographic and clinical data were collected using structured questionnaires. Ethical approval was granted, and informed consent was obtained. Data were analyzed using SPSS v23, with associations assessed using logistic regression and Chi-square tests at a 0.05 significance level. Continuous variables summarized by median and interquartile range (IQR).
resultThe study included 1,223 participants (440 from Tsore camp and 220 from Sherkole in Benishangul Gumuz Region; 288 from Kule camp and 275 from Terkidi in Gambella Region), most of whom were from South Sudan (66.7%) and the majority were females (56.5%). 17.8% of the participants reported fever, with no spleen or liver enlargement and 0.2% lymph node swelling. Real-time PCR positivity was significantly higher in Tsore (14.6%, χ² = 21.4, p < 0.001), no significant difference in DAT positivity was observed across refugee camps (χ² = 6.6, p = 0.084). Leishmania DAT positivity rates were 6.0%, 4.6% and 4.7% in those with fever, chills and headache, respectively. Leishmania kDNA based rtPCR positivity rate were 11.7%, 8.8%, 7.3% and 6.2% in those with fever, chills, headache and weakness, respectively. Participants from Benishangul Gumuz region [AOR: 3.67 (95%CI: 1.57-8.59); p = 0.003]; South Sudanese [AOR: 2.87 (95%CI: 1.26-6.50); p = 0.012 and those with fever [AOR: 2.08 (95%CI: 1.01-4.28); p = 0.047] had a higher odds of DAT positivity. On the other hand, lower rtPCR positivity rates were seen in the Sherkole refugee camp compared to Tsore camps in Benishangul Gumuz region [AOR: 0.19 (95%CI: 0.08-0.45); p < 0.0001].
conclusionLeishmania infection was prevalent in refugee camps in Gambella and Benishangul Gumuz regions. Asymptomatic cases and low parasite loads were common, highlighting the need for active case detection, intervention including treatment and vector control to manage VL transmission effectively.
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