A DNA microarray-based assay to detect dual infection with two dengue virus serotypes

Sensors (Basel). 2014 Apr 25;14(5):7580-601. doi: 10.3390/s140507580.

Abstract

Here; we have described and tested a microarray based-method for the screening of dengue virus (DENV) serotypes. This DNA microarray assay is specific and sensitive and can detect dual infections with two dengue virus serotypes and single-serotype infections. Other methodologies may underestimate samples containing more than one serotype. This technology can be used to discriminate between the four DENV serotypes. Single-stranded DNA targets were covalently attached to glass slides and hybridised with specific labelled probes. DENV isolates and dengue samples were used to evaluate microarray performance. Our results demonstrate that the probes hybridized specifically to DENV serotypes; with no detection of unspecific signals. This finding provides evidence that specific probes can effectively identify single and double infections in DENV samples.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biosensing Techniques / instrumentation*
  • DNA, Viral / genetics*
  • Dengue / diagnosis*
  • Dengue / virology*
  • Dengue Virus / classification
  • Dengue Virus / genetics*
  • Dengue Virus / isolation & purification*
  • Equipment Design
  • Equipment Failure Analysis
  • Humans
  • Oligonucleotide Array Sequence Analysis / instrumentation*
  • Reproducibility of Results
  • Sensitivity and Specificity
  • Serogroup

Substances

  • DNA, Viral