Virologica Sinica

, Volume 33, Issue 1, pp 67–73 | Cite as

Prevalence and Phylogenetic Analysis of Crimean-Congo Hemorrhagic Fever Virus in Ticks from Different Ecosystems in Xinjiang, China

Research Article

Abstract

The Crimean-Congo hemorrhagic fever virus (CCHFV), a member of the genus Orthonairovirus and family Nairoviridae, is transmitted by ticks and causes severe hemorrhagic disease in humans. To study the epidemiology of CCHFV in different ecosystems in Xinjiang, China, a total of 58,932 ticks were collected from Tarim Basin, Junggar Basin, Tianshan Mountain, and Altai Mountain from 2014 to 2017. Hyalomma asiaticum asiaticum was the dominant tick species in Tarim and Junggar basins, whereas Dermacentor nuttalli and Hyalomma detritum were found in Tianshan Mountain and Altai Mountain, respectively. Reverse transcription-polymerase chain reaction of the CCHFV small (S) genome segment was used for the molecular detection. The CCHFV-positive percentage was 5.26%, 6.85%, 1.94%, and 5.56% in Tarim Basin, Junggar Basin, Tianshan Mountain, and Altai Mountain, respectively. Sequences of the S segment were used for phylogenetic analysis and the results showed that the newly identified CCHFV strains belonged to two clades. Our study confirms that H. asiaticum asiaticum is the major vector of CCHFV in desert habitats which is consistent with previous studies, and also suggests that H. detritum and D. nuttalli are emerging vectors for CCHFV in Xinjiang. Moreover, this study reports the presence of CCHFV in the mountain habitat of Xinjiang for the first time, suggesting that future surveillance of CCHFV should also include mountainous areas.

Keywords

Crimean-Congo hemorrhagic fever virus (CCHFV) Prevalence Homology Tick Ecosystems Xinjiang 

Notes

Acknowledgements

This work was supported by the Ministry of Science and Technology of China (2013FY113500), the grants from the National Science Foundation of China (Nos. 81460303, 81760365), and Funded by the Open Research Fund Program of the State Key Laboratory of Virology of China (No. 2015IOV003).

Author Contributions

SRS, FD, YJZ and ZHH designed the experiments. AM and CCC carried out the experiments. YJZ, XHY, TL and CW collected the samples. RG, SS and YFZ provided experimental and sequence analysis support. SRS and YJZ analyzed the data. AM and SRS wrote the paper. All authors read and approved the final manuscript for submission.

Compliance with Ethical Standards

Conflict of interest

The authors declare that they have no conflict of interest.

Animal and Human Rights Statement

This article does not contain any studies with human or animal subjects performed by any of the authors.

Supplementary material

12250_2018_16_MOESM1_ESM.pdf (72 kb)
Supplementary material 1 (PDF 72 kb)

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Copyright information

© Wuhan Institute of Virology, CAS and Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and TechnologyXinjiang UniversityUrumqiChina
  2. 2.Center for Disease Control and Prevention of Xinjiang Uygur Autonomous RegionUrumqiChina
  3. 3.State Key Laboratory of Virology, Wuhan Institute of VirologyChinese Academy of SciencesWuhanChina

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