Abdullah Shadan Hassan
Department of Microbiology, College of Veterinary Medicine, University of Sulaimani, Sulaymaniyah, Iraq.
Ital J Food Saf. 2024 Mar 28;13(2):12257. doi: 10.4081/ijfs.2024.12257. eCollection 2024 May 15.
Toxoplasmosis is a cosmopolitan zoonotic infection that has significant effects on public health and causes economic losses in the livestock industry. The current study was designed to detect the parasite in sheep blood samples and tissue samples of slaughtered sheep at the Sulaimani abattoir using molecular technique. A total of 300 peripheral sheep blood samples were randomly collected from 20 small ruminant flocks at 4 locations in the Sulaymaniyah province, northern Iraq. Also, 150 meat samples from thigh muscle, heart, and diaphragm were collected from slaughtered sheep. All collected blood samples were subjected to polymerase chain reaction (PCR) amplification to confirm infection; in addition, meat samples were also analyzed for by PCR following the digestion process. Of the 300 amplified blood samples, 94 were considered positive for , with a prevalence rate of 31.3%. The overall prevalence of among meat samples was 34%. The diaphragm reported a higher infection rate (46%) than the heart (32%), while the femoral muscle reported an infection rate of 24%. Aged animals (older than 24 months) presented a higher infection rate (32.8%) than younger animals (28.9%). Contact with or consumption of uncooked meat from infected sheep increases the chance of parasite transmission to humans.
弓形虫病是一种世界性的人畜共患感染病,对公众健康有重大影响,并给畜牧业造成经济损失。本研究旨在利用分子技术,在苏莱曼尼亚屠宰场的绵羊血液样本和屠宰绵羊的组织样本中检测该寄生虫。从伊拉克北部苏莱曼尼亚省4个地点的20个小型反刍动物群中随机采集了300份绵羊外周血样本。此外,还从屠宰绵羊身上采集了150份来自大腿肌肉、心脏和横膈膜的肉样。所有采集的血液样本都进行聚合酶链反应(PCR)扩增以确认感染;此外,肉样在消化处理后也通过PCR进行分析。在300份扩增的血液样本中,94份被认为弓形虫检测呈阳性,患病率为31.3%。肉样中弓形虫的总体患病率为34%。横膈膜的感染率(46%)高于心脏(32%),而大腿肌肉的感染率为24%。老龄动物(24个月以上)的感染率(32.8%)高于幼龄动物(28.9%)。接触或食用来自受感染绵羊的生肉会增加寄生虫传播给人类的几率。