Department of Medical Parasitology & Entomology, School of Medicine, College of Health Sciences, Mekelle University, Mekelle, Ethiopia.
Dermatovenerology unit, School of Medicine, College of Health Sciences, Mekelle University, Mekelle, Ethiopia.
PLoS Negl Trop Dis. 2019 Sep 26;13(9):e0007722. doi: 10.1371/journal.pntd.0007722. eCollection 2019 Sep.
BACKGROUND: In Ethiopia guidelines for diagnoses and treatment of leishmaniases are available, but only a few hundred people are diagnosed and receive treatment. A field study has been carried out to determine the status and environmental determinants of cutaneous leishmaniasis (CL) and assess the degree of awareness of the rural communities in affected areas in Tigray, northern Ethiopia. METHODOLOGY / PRINCIPAL FINDINGS: Following a reconnaissance survey that identified endemic foci, a cross sectional door-to-door survey was conducted in 2009 in five rural communities around the towns of Adigrat and Hagereselam in Tigray. In total 9,622 residents of 1,721 households were clinically screened and household heads interviewed regarding the determinants of infection. The χ2 test and logistic regression were used to determine differences in prevalence between localities, age and sex, and to identify environmental determinants of infection. The overall prevalence of localized CL was 2.3% (highest 4.7%), with marked inter-village differences. Another 20.9% had scars from previous infections. While risk was sex-independent, prevalence was significantly higher in the 0-9 (4.5%) and 10-19 (2.5%) age groups and predominantly involved the face (82.1%) and upper limbs (13.1%). Nearly 11% of the households had one or more cases of CL and this was associated with proximity to hyrax habitats. All interviewees were knowledgeable about the lesions but ignorant of the disease's mode of transmission and its association with hyraxes. CONCLUSIONS: The study established that CL is an important public health problem in the study communities, and has been so for a while, as demonstrated by the widespread presence of scars. CL in Tigray appeared to be predominantly of zoonotic nature, mainly transmitted in peri-domestic habitats in proximity to hyrax habitats. Integrated interventions, including awareness creation, are highly recommended.
背景:在埃塞俄比亚,有针对利什曼病的诊断和治疗指南,但仅有数百人被诊断并接受治疗。为了确定皮肤利什曼病(CL)的现状和环境决定因素,并评估受影响地区农村社区的认知程度,在提格雷的阿迪亚格拉特和哈格雷斯勒姆镇周围的五个农村社区进行了一项实地研究。
方法/主要发现:在一次侦察性调查确定了流行焦点之后,于 2009 年在提格雷的五个农村社区进行了一次横断面入户调查。共有 1721 户中的 9622 名居民接受了临床筛查,并对家庭户主进行了有关感染决定因素的访谈。χ2 检验和逻辑回归用于确定局部地区、年龄和性别之间的患病率差异,并确定感染的环境决定因素。局部性 CL 的总患病率为 2.3%(最高为 4.7%),村庄之间存在明显差异。另有 20.9%的人有以前感染的疤痕。虽然风险与性别无关,但 0-9 岁(4.5%)和 10-19 岁(2.5%)年龄组的患病率明显较高,主要涉及面部(82.1%)和上肢(13.1%)。近 11%的家庭有一个或多个 CL 病例,这与靠近蹄兔栖息地有关。所有受访者都了解病变,但对疾病的传播方式及其与蹄兔的关系一无所知。
结论:该研究表明,CL 是研究社区的一个重要公共卫生问题,这一问题已经存在了一段时间,因为广泛存在的疤痕表明了这一点。提格雷的 CL 似乎主要具有动物源性,主要在靠近蹄兔栖息地的家庭周围环境中传播。强烈建议采取综合干预措施,包括提高认识。
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