A Highly Sensitive Molecular Technique for RNA Virus Detection

Cells. 2024 May 9;13(10):804. doi: 10.3390/cells13100804.

Abstract

Zika (ZIKV) and Chikungunya (CHIKV) viruses are mosquito-transmitted infections, or vector-borne pathogens, that emerged a few years ago. Reliable diagnostic tools for ZIKV and CHIKV-inexpensive, multiplexed, rapid, highly sensitive, and specific point-of-care (POC) systems-are vital for appropriate risk management and therapy. We recently studied a detection system with great success in Mexico (Villahermosa, state of Tabasco), working with human sera from patients infected with those viruses. The research conducted in Mexico validated the efficacy of a novel two-step rapid isothermal amplification technique (RAMP). This approach, which encompasses recombinase polymerase amplification (RPA) followed by loop-mediated isothermal amplification (LAMP), had been previously established in the lab using lab-derived Zika (ZIKV) and Chikungunya (CHIKV) viruses. Crucially, our findings confirmed that this technique is also effective when applied to human sera samples collected from locally infected individuals in Mexico.

Keywords: Chikungunya; LAMP; Zika; detection; diagnostics.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Chikungunya Fever / blood
  • Chikungunya Fever / diagnosis
  • Chikungunya Fever / virology
  • Chikungunya virus* / genetics
  • Chikungunya virus* / isolation & purification
  • Humans
  • Mexico
  • Molecular Diagnostic Techniques / methods
  • Nucleic Acid Amplification Techniques* / methods
  • RNA Viruses / genetics
  • RNA Viruses / isolation & purification
  • RNA, Viral / blood
  • RNA, Viral / genetics
  • Sensitivity and Specificity
  • Zika Virus Infection* / blood
  • Zika Virus Infection* / diagnosis
  • Zika Virus Infection* / virology
  • Zika Virus* / genetics
  • Zika Virus* / isolation & purification

Substances

  • RNA, Viral

Supplementary concepts

  • LAMP assay