University of Malakand, Department of Zoology, Lower Dir, KP, Pakistan.
Abdul Wali Khan University, Department of Zoology, Mardan, KP, Pakistan.
Braz J Biol. 2021 Nov 22;82:e242614. doi: 10.1590/1519-6984.242614. eCollection 2021.
Vegetables eating raw are a leading source of transmission of infective forms of pathogenic internal parasites among human beings. This research was conducted from April to October, 2017 to assess the parasitic contamination of vegetables sold at main vegetable markets in districts Lower Dir and Peshawar, Pakistan. Eight hundred specimens of different vegetables were purchased and soaked in physiological saline solution, shaken with a mechanical shaker for 20 minutes and processed by sedimentation concentration method. Results revealed that only 19.7% (n=158/800) of the vegetables were found to be contaminated with single or multiple parasite species. Ascaris lumbricoides (the large round worm) 12.3% (n=99/800) was the most commonly detected pathogen and Taenia saginata (the beef tapeworm) 1.62% (n=13/800) was the least frequently detected one. Interestingly, significant p value (p>0.05 at 95%CI) between the number of examined and contaminated for all the variables studied including education status of the vendors, markets location, type of vegetables, means of display, washed before display, washing source of water and market type. The findings of this study evidenced that consumption of raw vegetables possesses great risk of getting parasitic infections in Lower Dir and Peshawar districts, Pakistan. Instructing the sellers and the public about parasitic disease transfer and their hygiene can reduce the infection rate of parasites of human origin.
食用生蔬菜是人类感染内部寄生虫感染性形式的主要途径。本研究于 2017 年 4 月至 10 月在巴基斯坦下迪尔和白沙瓦地区的主要蔬菜市场进行，旨在评估销售的蔬菜中的寄生虫污染情况。共购买了 800 份不同的蔬菜样本，将其浸泡在生理盐水溶液中，用机械摇床摇动 20 分钟，然后采用沉淀浓缩法进行处理。结果显示，只有 19.7%（n=158/800）的蔬菜被单一或多种寄生虫物种污染。最常见的病原体是蛔虫（the large round worm），占 12.3%（n=99/800），而最不常见的病原体是带绦虫（the beef tapeworm），占 1.62%（n=13/800）。有趣的是，在所研究的所有变量中，包括卖家的教育程度、市场位置、蔬菜类型、展示方式、展示前是否清洗、清洗用水来源和市场类型，检查数量与污染数量之间的 p 值均无统计学意义（95%置信区间内 p>0.05）。本研究结果表明，在巴基斯坦下迪尔和白沙瓦地区，食用生蔬菜存在感染寄生虫的巨大风险。教育卖家和公众有关寄生虫病传播及其卫生知识可以降低人类寄生虫感染率。
