Combination of an unbiased amplification method and a resequencing microarray for detecting and genotyping equine arteritis virus.

This research study highlights the efficacy of using an unbiased amplification method on equine arteritis virus RNA in heightening the sensitivity of the RT-qPCR. By hybridizing the amplified viral RNAs on a high-density resequencing microarray, accurate viral characterization can be achieved.

Objective and Methodology

• The objective of this study was to explore the impact of an unbiased amplification method on RNA of the equine arteritis virus in terms of enhancing the sensitivity of the RT-qPCR, a method advised by the World Organization for Animal Health for virus detection.
• The research depended on the use of an unbiased amplification method for twelve viral RNAs and the subsequent hybridization of these amplified RNAs on a high-density resequencing microarray.

Unbiased Amplification Method

• The unbiased amplification method provides a way to enhance the detection of an entire range of nucleic acids from a specific sample, thus, maximizing the chance of capturing the viral genetic material, in this case, equine arteritis virus RNA.

Real-Time Reverse Transcription-Quantitative PCR (RT-qPCR)

• This is a diagnostic technique that helps in detecting and quantifying RNA targets. The World Organization for Animal Health, among others, endorses the use of RT-qPCR for detection of various infectious agents, including the equine arteritis virus.
• Raising the sensitivity of RT-qPCR makes for a more efficient diagnostic tool, helping to ensure that even low levels of viral RNA are effectively detected, thus enhancing the reliability of the test.

Introduction of High-density Resequencing Microarray

• A high-density resequencing microarray allows simultaneous detection of multiple genetic markers. It provides an extensive overview of the viral genetic material, thus aiding in detailed characterization of viruses.
• The use of this technology in the study, where amplified viral RNAs were hybridized on the microarray, enabled the effective characterization of the equine arteritis virus.

Implication of Research

• This study underlines the potential improvements to the sensitivity of the RT-qPCR when using an unbiased amplification method and resequencing microarray. This improved method could potentially guide detection and genotyping of various viruses, helping to manage viral infections in equine species more effectively.