Raeghi S, Akaberi A, Sedeghi S
Dept. of Basic Sciences, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran & Zoonotic Diseases Research Center, North Khorasan university of Medical Sciences, Bojnurd, Iran.
Iran J Parasitol. 2011 Dec;6(4):90-4.
Toxoplasma gondii is a zoonotic protozoan parasite found worldwide and responsible for major economic losses in most classes of livestock. This study was aimed to determine the prevalence of T. gondii infection in sheep, cattle and horses in Urmia, north-west of Iran, using MAT.
Blood samples of 276 livestock and 26 horses were collected from July 2009 till April 2010. The data were analyzed by the Chi-square, Fisher's Exact and Cochran's and Mantel-Haenszel Tests. The level of significance was set at P<0.05.
Thirty-three (21.1%) sheep, 2 (1.6%) cattle and 3 (11.5%) horses were seropositive to T. gondii. Analysis showed that sheep were 15 times more likely to be seropositive comparing to cattle also 2 times more likely to be seropositive than horses.
This study showed seroprevalence of equine T. gondii infection with a considerable rate in sheep in Urmia, northwest of Iran. More comprehensive studies on livestock toxoplasmosis are required for further analysis of the parasite reservoir for human infection.
刚地弓形虫是一种人畜共患的原生动物寄生虫，在全球范围内均有发现，并给大多数家畜类群造成重大经济损失。本研究旨在利用微量凝集试验（MAT）确定伊朗西北部乌尔米耶地区绵羊、牛和马的弓形虫感染率。
于2009年7月至2010年4月采集了276份家畜血液样本和26份马血样本。数据采用卡方检验、费舍尔精确检验、 Cochr an检验和 Mantel-Haenszel检验进行分析。显著性水平设定为P<0.05。
33只（21.1%）绵羊、2头（1.6%）牛和3匹马（11.5%）弓形虫血清学检测呈阳性。分析表明，绵羊血清学检测呈阳性的可能性是牛的15倍，是马的2倍。
本研究表明，伊朗西北部乌尔米耶地区绵羊的马源弓形虫感染血清阳性率较高。需要对家畜弓形虫病进行更全面的研究，以进一步分析人类感染的寄生虫储存宿主。
