Surveillance and genome analysis of human bocavirus in patients with respiratory infection in Guangzhou, China

PLoS One. 2012;7(9):e44876. doi: 10.1371/journal.pone.0044876. Epub 2012 Sep 11.

Abstract

Human bocavirus (HBoV) is a novel parvovirus associated with respiratory tract diseases and gastrointestinal illness in adult and pediatric patients throughout the world. To investigate the epidemiological and genetic variation of HBoV in Guangzhou, South China, we screened 3460 throat swab samples from 1686 children and 1774 adults with acute respiratory infection symptoms for HBoV between March 2010 and February 2011, and analyzed the complete genome sequence of 2 HBoV strains. Specimens were screened for HBoV by real-time PCR and other 6 common respiratory viruses by RT-PCR or PCR. HBoV was detected in 58 (1.68%) out of 3460 samples, mostly from pediatric patients (52/58) and inpatient children (47/58). Six adult patients were detected as HBoV positive and 5 were emergency cases. Of these HBoV positive cases, 19 (32.76%) had co-pathogens including influenza virus (n = 5), RSV (n = 5), parainfluenza (n = 4), adenovirus (n = 1), coronavirus (n = 7). The complete genome sequences of 2 HBoVs strains (Genbank no. JN794565 and JN794566) were analyzed. Phylogenetic analysis showed that the 2 HBoV strains were HBoV1, and were most genetically close to ST2 (GenBank accession number DQ0000496). Recombination analysis confirmed that HBoV strain GZ9081 was an intra-genotype recombinant strain among HBoV1 variants.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Child
  • Child, Preschool
  • China
  • DNA Primers / genetics
  • Epidemiological Monitoring
  • Female
  • Human bocavirus / genetics*
  • Human bocavirus / metabolism*
  • Humans
  • Infant
  • Infant, Newborn
  • Male
  • Middle Aged
  • Phylogeny
  • Polymerase Chain Reaction / methods
  • Real-Time Polymerase Chain Reaction / methods
  • Respiratory Tract Infections / virology*
  • Sequence Analysis, DNA / methods
  • Sequence Analysis, RNA / methods

Substances

  • DNA Primers

Grants and funding

This research was supported by National Major Projects of Major Infectious Disease Control and Prevention, the Ministry of Science and Technology of the People's Republic of China (grant numbers 2009ZX10004-213 and 2012ZX10004213-001). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.