MIRA/PfAgo-Mediated Biosensor for Multiplex Human Enteroviruses Virus Typing Detection on HFMD

Area of Science:

• Molecular Biology
• Virology
• Infectious Diseases

Background:

• Hand, Foot, and Mouth Disease (HFMD) is a common childhood illness caused by enteroviruses.
• Current diagnostic methods lack broad coverage for all causative agents, and effective antiviral treatments are limited.
• Accurate and rapid diagnostic tools are crucial for managing HFMD outbreaks and public health.

Purpose of the Study:

• To develop a novel multiple nucleic acid typing method for identifying key enterovirus type A pathogens responsible for HFMD.
• To evaluate the sensitivity, efficiency, and diagnostic accuracy of the new method compared to existing techniques.

Main Methods:

• Development of the MIRA-HEV-PAND method utilizing PfAgo for enterovirus typing.
• Assessment of minimum detection concentration (MDC) and comparison with qPCR assays.
• Evaluation of diagnostic performance on clinical samples and comparison with PCR-based methods.

Main Results:

• The MIRA-HEV-PAND method demonstrated high sensitivity, with an MDC of 1.66 aM (1.0 copy/microL), comparable or superior to qPCR.
• The method proved to be more sensitive and less time-consuming than combined PCR amplification techniques.
• Clinical sample evaluation showed 100% consistency with qPCR results, highlighting its diagnostic accuracy.

Conclusions:

• The MIRA-HEV-PAND method offers a sensitive, rapid, and accurate diagnostic tool for enterovirus typing in HFMD.
• This technology provides a valuable platform for molecular testing in clinical diagnostics and epidemiological studies of enterovirus infections.
• The method's flexibility and cost-effectiveness make it suitable for broad application in public health surveillance.