Related Experiment Video
Updated: May 16, 2026
05:22
A Multiplex Serological Assay for the Detection of Antibody Responses to Arboviruses
Published on: November 4, 2025
Resequencing microarray method for molecular diagnosis of human arboviral diseases
N Berthet1, S Paulous, L L Coffey
1Institut Pasteur, Epidemiology and Physiopathology of Oncogenic Viruses Unit, 28 rue du Docteur Roux, F75015 Paris, France.
Summary
High-density PathogenID v2.0 Resequencing DNA Microarray (PID2-RMA) effectively detects and genetically analyzes arboviruses like dengue, West Nile, and Chikungunya. This diagnostic tool is valuable for rapid identification in urgent clinical situations.
Area of Science:
- Molecular Diagnostics
- Virology
- Genomics
Background:
- Resequencing DNA microarray (RMA) technology utilizes probes for identifying viral sequences.
- RMA can detect emerging viruses by revealing nucleotide polymorphisms.
Purpose of the Study:
- To assess high-density PathogenID v2.0 RMA (PID2-RMA) for arbovirus infection diagnosis.
- To evaluate PID2-RMA for detecting and genetically analyzing dengue, West Nile, and Chikungunya viruses.
Main Methods:
- Viral RNAs were extracted, retrotranscribed to cDNA, and amplified using Phi 29 polymerase.
- Amplified cDNA was hybridized onto the PID2-RMA for detection.
Main Results:
- PID2-RMA demonstrated good specificity for detecting Dengue, West Nile, and Chikungunya viruses.
- The technology efficiently identified dengue virus serotypes and performed well with mixed viral samples.
Conclusions:
- High-density PID2-RMA is suitable for identifying medically important arboviruses.
- PID2-RMA is particularly useful for rapid genetic analysis of dengue, West Nile, and Chikungunya viruses in clinical settings.
Related Concept Videos
02:34DNA Microarrays
Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...
01:25Arboviral Encephalitis
Arboviral encephalitis refers to brain inflammation caused by arthropod-borne viruses, particularly those transmitted through mosquito vectors. Among these, West Nile virus (WNV), a member of the Flaviviridae family, is a significant public health concern. WNV is an enveloped, positive-sense, single-stranded RNA virus. Human infection typically begins when an infected mosquito introduces the virus into the dermis during feeding. The primary transmission cycle involves birds as amplifying hosts...