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Updated: Aug 13, 2026

High-throughput Detection Method for Influenza Virus
Published on: February 4, 2012
[Application of the time-resolved immunofluorometric assay in the detection of viruses]
1Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing.
Insights
Time-resolved immunofluorometric assay (TR-IFMA) offers a sensitive and specific method for detecting various viruses and viral nucleic acids. This advanced technique surpasses ELISA and RIA in clinical diagnostic consistency and low detection limits.
Area of Science:
- Immunology
- Virology
- Biochemistry
Context:
- Time-resolved immunofluorometric assay (TR-IFMA) is an advanced diagnostic technique.
- Traditional methods like ELISA and RIA have limitations in sensitivity and specificity.
Purpose:
- To evaluate the efficacy of two TR-IFMA systems for virus detection.
- To compare TR-IFMA with ELISA and RIA for viral diagnostics.
Summary:
- TR-IFMA effectively detects a wide range of viruses including adenovirus, influenza, RSV, rotavirus, HBV, and HIV.
- The assay demonstrates high sensitivity and specificity, with a low detection limit for viral antigens (10-100 pg).
- Dual-label TR-IFMA and detection of viral nucleic acids also showed promising results.
Impact:
- TR-IFMA provides a more sensitive, specific, and clinically consistent method for viral detection.
- The technique's low detection limits enable earlier and more accurate diagnosis of viral infections.
- TR-IFMA holds potential for broad application in clinical virology and infectious disease diagnostics.
Abstract:
Two systems of time-resolved immunofluorometric assay (TR-IFMA), i.e., LKB system detection of viruses. The viruses detected were mainly adenovirus, influenza virus, parainfluenza virus, respiratory syncytial virus rotavirus, hepatitis B virus, human immunodeficiency virus, rubella virus, etc. Compared with methods of ELISA and RIA, TR-IFMA has the merits of high sensitivity, specificity and consistency with clinical diagnosis. The low detection limit of virus antigen by TR-IFMA is between 10-100 pg. The application of dual-label TR-IFMA also showed good effect. TR-IFMA can also be used in the detection of viral nucleic acids. The target region detected may reach the level of pg.
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