Comprehensive virome analysis reveals the complexity and diversity of the viral spectrum in pediatric patients diagnosed with severe and mild hand-foot-and-mouth disease

Virology. 2018 May:518:116-125. doi: 10.1016/j.virol.2018.02.004. Epub 2018 Feb 19.

Abstract

The management of hand-foot-and-mouth disease(HFMD) epidemic is difficult due to the frequent emergence of non-EV71 and non-CVA16 enteroviruses and some cases testing negative for HFMD-associated causative agents. To clarify the virus spectrum of mild and severe HFMD, a comprehensive virome analysis of 238 samples was performed using next-generation sequencing (NGS). The data revealed total thirteen mammalian- and plant- virus families and diverse viral populations including enteroviruses, common respiratory viruses, diarrhea-related viruses, plant viruses and anelloviruses. A total of 18 viruses from 7 virus families were identified in severe cases, versus 37 viruses from 12 virus families in mild cases. Moreover, complicated mixed-infections of enteroviruses with common respiratory viruses were mainly found in severe cases(P = 0.013), while diarrhea-related viruses were mainly found in mild cases(P < 0.001). This study provides the preliminary understanding of viromes both in mild and severe cases, which may benefit the detection of etiologic agents and prevention of HFMD.

Keywords: Complexity; Diversity; Mild HFMD; Next-generation sequencing; Severe HFMD; Virome.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Child
  • Child, Preschool
  • China / epidemiology
  • Enterovirus A, Human / genetics*
  • Feces / virology
  • Genetic Variation
  • Hand, Foot and Mouth Disease / epidemiology
  • Hand, Foot and Mouth Disease / pathology*
  • Hand, Foot and Mouth Disease / virology*
  • Humans
  • Infant
  • Male
  • Phylogeny