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Virological investigation of genetic variation of enterovirus type 71 in hand, foot and mouth disease

  • Authors:
    • Yang Wang
    • Yi Li
    • Yuling Yang
    • Chuanmei Peng
    • Xiaoye Fu
    • Xin Gu
    • Hui Gao
  • View Affiliations / Copyright

    Affiliations: Department of Laboratory, Kunming Yanan Hospital, Kunming, Yunnan 650051, P.R. China, Department of Cell Biology and Genetics, Kunming Medical University, Chenggong, Kunming, Yunnan 650500, P.R. China
    Copyright: © Wang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 543-549
    |
    Published online on: May 7, 2020
       https://doi.org/10.3892/etm.2020.8728
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Abstract

The aim of the present study was to analyze the sequence of the VP1 gene in enterovirus 71 (EV71) isolates and to explore their genetic evolution, so as to provide a scientific basis for the clinical prevention and treatment of hand, foot and mouth disease. The fecal samples of 590 patients with suspected hand, foot and mouth disease treated at Yan'an Hospital (Kunming, China) between January 2015 and December 2016 were collected and EV71 nucleic acid was detected by fluorescence PCR. The viral RNA of EV71‑positive samples was extracted, the VP1 gene was amplified by PCR and the products were sequenced. The VP1 gene sequence was analyzed using DNAMAN and MEGA (version 4.0) software and homologous modeling was performed using Pymol software. A total of 50 EV71‑positive samples were identified and the detection rate was 8.47% (50/590 cases). All of the 50 EV71 strains were of the C4 subtype. The genetic distance between the strains detected in the present study and EV71 strains detected in Beijing, Anhui and Malaysia was 0.01‑0.03, while that between the strains detected in the present study and Australian strains was 2.11. Homologous modeling indicated that the amino acid sequence of the VP1 gene of the detected strains had a H144Y mutation. There was no significant genetic variation in the EV71 strain within the 2‑year period. In conclusion, the EV71 strains detected in the present study was similar to that detected in Beijing, Anhui and Malaysia but different to that from Australia. A point mutation was present in the amino acid sequence of the VP1 gene.
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Copy and paste a formatted citation
Spandidos Publications style
Wang Y, Li Y, Yang Y, Peng C, Fu X, Gu X and Gao H: Virological investigation of genetic variation of enterovirus type 71 in hand, foot and mouth disease. Exp Ther Med 20: 543-549, 2020.
APA
Wang, Y., Li, Y., Yang, Y., Peng, C., Fu, X., Gu, X., & Gao, H. (2020). Virological investigation of genetic variation of enterovirus type 71 in hand, foot and mouth disease. Experimental and Therapeutic Medicine, 20, 543-549. https://doi.org/10.3892/etm.2020.8728
MLA
Wang, Y., Li, Y., Yang, Y., Peng, C., Fu, X., Gu, X., Gao, H."Virological investigation of genetic variation of enterovirus type 71 in hand, foot and mouth disease". Experimental and Therapeutic Medicine 20.1 (2020): 543-549.
Chicago
Wang, Y., Li, Y., Yang, Y., Peng, C., Fu, X., Gu, X., Gao, H."Virological investigation of genetic variation of enterovirus type 71 in hand, foot and mouth disease". Experimental and Therapeutic Medicine 20, no. 1 (2020): 543-549. https://doi.org/10.3892/etm.2020.8728
Copy and paste a formatted citation
x
Spandidos Publications style
Wang Y, Li Y, Yang Y, Peng C, Fu X, Gu X and Gao H: Virological investigation of genetic variation of enterovirus type 71 in hand, foot and mouth disease. Exp Ther Med 20: 543-549, 2020.
APA
Wang, Y., Li, Y., Yang, Y., Peng, C., Fu, X., Gu, X., & Gao, H. (2020). Virological investigation of genetic variation of enterovirus type 71 in hand, foot and mouth disease. Experimental and Therapeutic Medicine, 20, 543-549. https://doi.org/10.3892/etm.2020.8728
MLA
Wang, Y., Li, Y., Yang, Y., Peng, C., Fu, X., Gu, X., Gao, H."Virological investigation of genetic variation of enterovirus type 71 in hand, foot and mouth disease". Experimental and Therapeutic Medicine 20.1 (2020): 543-549.
Chicago
Wang, Y., Li, Y., Yang, Y., Peng, C., Fu, X., Gu, X., Gao, H."Virological investigation of genetic variation of enterovirus type 71 in hand, foot and mouth disease". Experimental and Therapeutic Medicine 20, no. 1 (2020): 543-549. https://doi.org/10.3892/etm.2020.8728
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