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首页> 外文期刊>Journal of Parasitology >WIDESPREAD OCCURRENCE OF ZOONOTIC CRYPTOSPORIDIUM SPECIES AND SUBTYPES IN DAIRY CATTLE FROM NORTHEAST CHINA: PUBLIC HEALTH CONCERNS
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WIDESPREAD OCCURRENCE OF ZOONOTIC CRYPTOSPORIDIUM SPECIES AND SUBTYPES IN DAIRY CATTLE FROM NORTHEAST CHINA: PUBLIC HEALTH CONCERNS

机译：中国东北地区乳制品牛牛群中的大殖民地孢子物种和亚型的广泛发生：公共卫生问题

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摘要

Bovine cryptosporidiosis constitutes a threat to the livestock industry and public health worldwide. In the present study we investigated dairy cattle of all ages in northeast China for the prevalence and genetic traits of Cryptosporidium. Nested polymerase chain reaction of the small subunit rRNA gene was used to identify Cryptosporidium species or genotype. The parasite was detected in 130 of 537 (24.2%) animals sampled from the cities of Harbin (35.2%, 69/196) and Qiqihar (32.1%, 61/190). Cryptosporidium parvum (87/130) was identified as the dominant species by sequence analysis followed by Cryptosporidium bovis (28/130), Cryptosporidium ryanae (5/130), Cryptosporidium andersoni (2/130), Cryptosporidium suis-like genotype (2/130), and mixed C. ryanae/C. bovis (1/130). Subtyping of C. parvum isolates was based on the DNA polymorphisms of the 60-kDa glycoprotein gene. Subtyping of the C. parvum isolates recognized subtypes IIdA15G1 (24/87) in Harbin and IIdA20G1 (48/87) in Qiqihar. A diversity of Cryptosporidium species/genotype and subtypes was identified in cattle from northeast China. Widespread occurrence of human-pathogenic Cryptosporidium species and subtypes is of public health significance. This is the first study reporting C. parvum subtype IIdA20G1 in China. The findings improve the epidemiological knowledge of bovine cryptosporidiosis in China, highlighting the importance of ongoing Cryptosporidium surveillance.
机译：牛密码孢子虫病构成了对畜牧业的威胁和全世界的公共卫生。在本研究中，我们研究了中国东北部的所有年龄段的乳制品，以获得隐孢子虫的患病率和遗传性状。使用小亚基RRNA基因的嵌套聚合酶链反应鉴定密码孢子虫物种或基因型。在从哈尔滨城市（35.2％，69/196）和Qiqihar（32.1％，61/190）中排斥的537名（24.2％）动物中检测到寄生虫。用序列分析鉴定作为主导物种的序列孢子蛋白（28/130），Cryptosporidium（5/130），Cryptosporidium andersoni（2/130），Cryptosporidium suis样基因型（2 / 130），并混合C. Ryanae / c。 Bovis（1/130）。 C. C. parvum分离物的亚型基于60-KDA糖蛋白基因的DNA多态性。 C. parvum的亚型分离Qiqihar的哈尔滨和Iida20G1（48/87）的公认亚型Iida15G1（24/87）。来自中国东北地区的牛鉴定了多样性的隐孢子虫种类/基因型和亚型。人道病原性隐孢子虫种类和亚型的广泛发生是公共健康意义。这是中国第一次研究报告中国的C. Parvum亚型Iida20G1。调查结果改善了中国牛密码孢子虫病的流行病学知识，突出了正在进行的密码孢子虫监测的重要性。

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  • 来源
    《Journal of Parasitology》 |2018年第1期|共8页
  • 作者

    Tao Wei; Li Yijing; Yang Hang; Song Mingxin; Lu Yixin; Li Wei;

  • 作者单位

    Northeast Agr Univ Coll Vet Med Heilongjiang Key Lab Zoonosis 600 Changjiang Rd Harbin 150030 Heilongjiang Peoples R China;

    Northeast Agr Univ Coll Vet Med Heilongjiang Key Lab Zoonosis 600 Changjiang Rd Harbin 150030 Heilongjiang Peoples R China;

    Northeast Agr Univ Coll Vet Med Heilongjiang Key Lab Zoonosis 600 Changjiang Rd Harbin 150030 Heilongjiang Peoples R China;

    Northeast Agr Univ Coll Vet Med Heilongjiang Key Lab Zoonosis 600 Changjiang Rd Harbin 150030 Heilongjiang Peoples R China;

    Northeast Agr Univ Coll Vet Med Heilongjiang Key Lab Zoonosis 600 Changjiang Rd Harbin 150030 Heilongjiang Peoples R China;

    Northeast Agr Univ Coll Vet Med Heilongjiang Key Lab Zoonosis 600 Changjiang Rd Harbin 150030 Heilongjiang Peoples R China;

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  • 正文语种 eng
  • 中图分类 寄生动物、寄生虫学;
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