Health and Environment Microbiology Laboratory, Doctoral School of Sciences and Technology, Faculty of Public Health, Lebanese University, Tripoli, Lebanon.
Department of Vector Biology, Liverpool School of Tropical Medicine, Liverpool, England, UK.
Trans R Soc Trop Med Hyg. 2019 Aug 1;113(8):471-476. doi: 10.1093/trstmh/trz030.
BACKGROUND: Cutaneous leishmaniasis (CL) is the most prevalent neglected tropical disease among externally displaced people in the Middle East. In recent years, the Lebanese population has increased >30%, mainly due to a mass influx of Syrian migrants, thousands of them carrying CL, among other infectious diseases. Here we revisit the current CL prevalence among refugees in northern Lebanon. METHODS: This cohort study was conducted at the Al Bashaer Medical Center in north Lebanon between January and June 2017. A total of 48 randomly selected suspected CL patients were clinically diagnosed by dermatologists and samples were obtained for microscopic examination and molecular identification by polymerase chain reaction restriction fragment length polymorphism. The treatment response to antimonials was assessed each week and was followed for up 6 months. RESULTS: Leishmania tropica was the predominant species (91.7%) followed by Leishmania major (8.3%). Confirmed cases were treated with one to two courses of antimonials and healing was usually achieved after receiving a second course of treatment. Importantly, we show evidence of possible local CL transmission by indigenous sandflies in three separate patients who had no history of recent travel to Syria. CONCLUSIONS: This highlights the urgent necessity to implement preventive disease strategies to avoid further dispersion of L. tropica CL in north Lebanon.
背景:皮肤利什曼病(CL)是中东地区流离失所人群中最常见的被忽视热带病。近年来,黎巴嫩人口增长超过 30%,主要是由于大批叙利亚移民涌入,其中数千人患有 CL 和其他传染病。在这里,我们重新审视了黎巴嫩北部难民中目前的 CL 患病率。
方法:本队列研究于 2017 年 1 月至 6 月在黎巴嫩北部的 Al Bashaer 医疗中心进行。皮肤科医生对 48 名随机选择的疑似 CL 患者进行了临床诊断,并采集样本进行显微镜检查和聚合酶链反应限制片段长度多态性的分子鉴定。每周评估锑剂治疗的反应,并随访 6 个月。
结果:利什曼原虫(L. tropica)是主要物种(91.7%),其次是利什曼原虫(L. major)(8.3%)。确诊病例接受了一到两个疗程的锑剂治疗,通常在接受第二个疗程治疗后痊愈。重要的是,我们在三个没有近期前往叙利亚旅行史的患者中发现了当地可能存在的通过本地沙蝇传播的 CL 的证据。
结论:这突显了实施预防疾病策略的迫切需要,以避免黎巴嫩北部的 L. tropica CL 进一步扩散。
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