关键词: Acute schistosomiasis children katayama syndrome travel tropical disease

Mesh : Adolescent Adult Child Child, Preschool Eosinophilia Fever Humans Infant Infant, Newborn Retrospective Studies Schistosomiasis / diagnosis epidemiology Travel

来  源:   DOI:10.1093/jtm/taaa238   PDF(Sci-hub)

Abstract:
Schistosomiasis in non-immune travellers can cause acute schistosomiasis, a multi-systemic hypersensitivity reaction. Little is known regarding acute schistosomiasis in children. We describe acute schistosomiasis in paediatric travellers and compare them with adult travellers.
A retrospective study of paediatric travellers (0-18 years old) diagnosed with schistosomiasis at Sheba Medical Center. Patients\' findings are compared with those of adult travellers from the same travel groups.
in total, 18 children and 24 adults from five different trips to Tanzania, Uganda, Nigeria and Laos were infected (90% of the exposed travellers). The median bathing time of the infected children was 30 min (interquartile range (IQR) 15-30 min). The most common presentations were respiratory symptoms in 13 (72%), eosinophilia in 13 (72%) and fever in 11 (61%). Acute illness included a median of 2.5 symptoms. Three children required hospitalization and three were asymptomatic. Fatigue was significantly less common in children compared with similarly exposed adults (33% vs 71%, P = 0.03). Rates of hospitalization and steroid treatment were similar. The median eosinophil count in children was 1045 cells/μl (IQR 625-2575), lower than adults [2900 cells/μl (IQR 1170-4584)], P = 0.02.
Children may develop acute schistosomiasis following short exposure to contaminated freshwater, demonstrating a high infection rate. Severity seems to be similar to adults, although children report fatigue less commonly and show lower eosinophil counts. The disease should be suspected in children with multi-systemic illness and in asymptomatic children with relevant travel history.
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