Beiromvand Molouk, Rafiei Abdollah, Tavalla Mehdi, Daneshbakhtyar Roya
Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Department of Parasitology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
J Infect Dev Ctries. 2019 Feb 28;13(2):154-161. doi: 10.3855/jidc.10614.
Cystic Echinococcosis (CE) and toxocariasis caused by the larval stages of intestinal dog worms including Echinococcus granulosus and Toxocara spp. are among the most widespread zoonotic diseases.
Four hundred municipal waste collectors were serologically evaluated for CE and toxocariasis. To identify the seropositive cases of CE, an ELISA test was performed using native AgB. Toxocara IgG detection was carried out using ELISA DRG kit (USA), and the seropositive cases were then examined by a Western blot kit (LDBIO, France) to confirm the positive ELISA results.
15 (3.7%) workers were seropositive for CE according to the ELISA. A significant relationship was observed between being seropositive and having contact with soil and dogs. No significant correlations were observed between education and the prevalence of these diseases. Of the 15 seropositive workers for CE, ten worked in district 5 of Ahvaz. Toxocara IgG was identified in 11 (2.7%) cases using the ELISA; however, none of them were confirmed by Western blotting.
The 3.7% rate of seroprevalence for CE in asymptomatic municipal waste collectors living in urban regions of Ahvaz suggests a high rate. The higher rate of infection among workers in district 5 is likely associated with the presence of stray and owned dogs in that area of the city. A prolonged exposure to contaminated soil, the lack of awareness about the risk of diseases that can be transmitted through waste and the lack of general availability of suitable personal protective equipment for waste collectors might cause infectious diseases.
由肠道犬蠕虫（包括细粒棘球绦虫和弓蛔虫属）的幼虫阶段引起的囊性棘球蚴病（CE）和弓蛔虫病是最广泛传播的人畜共患病之一。
对400名城市垃圾收集者进行了CE和弓蛔虫病的血清学评估。为了确定CE的血清阳性病例，使用天然AgB进行了ELISA检测。使用ELISA DRG试剂盒（美国）进行弓蛔虫IgG检测，然后通过蛋白质印迹试剂盒（法国LDBIO）对血清阳性病例进行检测，以确认ELISA阳性结果。
根据ELISA检测，15名（3.7%）工人CE血清呈阳性。观察到血清阳性与接触土壤和狗之间存在显著关系。在教育程度与这些疾病的患病率之间未观察到显著相关性。在15名CE血清阳性工人中，有10人在阿瓦士第5区工作。使用ELISA在11例（2.7%）病例中检测到弓蛔虫IgG；然而，通过蛋白质印迹均未得到确认。
生活在阿瓦士城市地区的无症状城市垃圾收集者中CE血清阳性率为3.7%，表明感染率较高。第5区工人中较高的感染率可能与该市该地区流浪狗和家养犬的存在有关。长期接触受污染的土壤、对可通过垃圾传播的疾病风险缺乏认识以及垃圾收集者普遍缺乏合适的个人防护设备可能会导致传染病。
