First Report of Theileria Infection of Bactrian Camels (Camelus bactrianus) in Xinjiang, China
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Protozoan Theileria is transmitted by tick vectors to some animals worldwide and causes considerable economic damage. The detection of pathogens in camels is not only crucial for the preservation of species but also provides important information on the epidemiologic chain of diseases.
Materials and methods
We conducted a molecular detection in Xinjiang, China to assess the impact of Theileria infection in Bactrian camels and ticks in 2016. The 18S rRNA and MPSP gene sequences of T. sinensis obtained from Bactrian camels and ticks in Xinjiang, China have been deposited in the GenBank database.
PCR revealed that 6.56% of the Bactrian camel blood samples, 2.75% of Rhipicephalus sp., 3.81% of Hy. asiaticum, 4.32% of Hy. dromedarii, and 0% of D. niveus tick samples were positive for T. sinensis, respectively; no other Theileria and Babesia were found in these samples and D. niveus samples. The results showed that one Theileria parasite, Theileria sinensis, was found in Bactrian camels (Camelus bactrianus), Rhipicephalus sp., Hy. asiaticum, and Hy. dromedarii in Xinjiang, respectively.
This is the first detection of T. sinensis DNA in Bactrian camels from China. Our results provide important data to increase the understanding of theileriosis of Bactrian camel, and will aid in taking effective measures to control theileriosis transmission to camels, cattle and other ruminants in Xinjiang, China.
KeywordsTheileria Molecular detection Camel PCR Xinjiang China
This study was financially supported by the National Key R&D Program of China (2018YFD0502305, 2018YFD0501804, 2017YFD0501200, 2016YFD0501503 and 2016YFC1202000); NBCITS (CARS-37); Special Funds for Agro-scientific Research in the Public Research (Y2018YJ08-4); ASTIP, FRIP (2014ZL010), CAAS; 973 Program (2015CB150300), MOST; Special Funds for Agro-scientific Research in the Public Research (№201303035), MOA; Gansu International Collaboration Special Project (1504WKCA056); State Key Laboratory of Veterinary Etiological Biology Project. The authors would like to thank International Science Editing for the revision of this manuscript.
Compliance with Ethical Standards
Conflict of Interest
The authors declare that they have no competing interests.
This study was approved by the Animal Ethics Committee of Lanzhou Veterinary Research Institute, CAAS (no. LVRIAEC2013-010). The use of these field samples was approved by the Animal Ethics Procedures and Guideline of China.
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