Esmaeili Saber, Mohabati Mobarez Ashraf, Khalili Mohammad, Mostafavi Ehsan
Department of Bacteriology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
Department of Bacteriology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
Comp Immunol Microbiol Infect Dis. 2019 Apr;63:127-130. doi: 10.1016/j.cimid.2019.01.015. Epub 2019 Feb 2.
Coxiella burnetii is causative agent of Q fever, which is a public health problem in most countries. The aim of this study was to study the prevalence rate of C. burnetii in raw milk of dairy animals in Iran with previous history of abortion. In this survey, milk samples were collected from different dairy animals with history of abortion from Qom province (center of Iran). Samples were tested by Nested PCR and Real-time PCR for detection of IS1111 gene of C. burnetii. In total, 34.92% (44 of 126) milk samples were positive for C. burnetii. Prevalence of C. burnetii in cattle, sheep and goat milk was 33.33%, 35.71% and 35.71%, respectively. Age was a significant risk factor for shedding of C. burnetii in cattle (P = 0.02) and goat (P = 0.05). Shedding of C. burnetii was high prevalence in milk of dairy animals with history of abortion in Iran. The high prevalence of this bacterium in milk (especially in animals with history of abortion) indicates that Excreted by milk as a potential source to spread of infection in the environment.
伯氏考克斯氏体是Q热的病原体，在大多数国家，Q热都是一个公共卫生问题。本研究的目的是调查伊朗有过流产史的奶牛场动物生乳中伯氏考克斯氏体的流行率。在本次调查中，从伊朗中部库姆省有流产史的不同奶牛场动物中采集了牛奶样本。通过巢式PCR和实时PCR检测样本，以检测伯氏考克斯氏体的IS1111基因。总体而言，34.92%（126份样本中的44份）的牛奶样本伯氏考克斯氏体呈阳性。伯氏考克斯氏体在牛奶样本中的流行率分别为33.33%（牛）、35.71%（绵羊）和35.71%（山羊）。年龄是牛（P = 0.02）和山羊（P = 0.05）中伯氏考克斯氏体排出的一个显著风险因素。在伊朗，有流产史的奶牛场动物的牛奶中伯氏考克斯氏体排出率很高。这种细菌在牛奶中（尤其是有流产史的动物中）的高流行率表明，牛奶是其在环境中传播感染的一个潜在来源。
