Simultaneous detection of multiple pathogens by multiplex PCR coupled with DNA biochip hybridization

Area of Science:

• Veterinary Diagnostics
• Molecular Biology
• Biochip Technology

Background:

• Traditional enzyme-linked immunosorbent assays (ELISA) are standard for pathogen monitoring in animal facilities but are time-consuming and single-target.
• Current methods pose challenges for high-throughput screening and detecting multiple infections simultaneously.

Purpose of the Study:

• To develop a sensitive, rapid, multi-pathogen diagnostic method for animal quarantine and disease prevention.
• To replace laborious, single-target ELISA with an efficient, high-throughput assay.

Main Methods:

• Designed eight primer sets for multiplex PCR to detect genes from seven target bacterial and viral pathogens.
• Combined multiplex PCR with DNA biochip technology for pathogen detection via DNA-DNA hybridization.
• Tested 24 clinical samples using the developed multiplex PCR and DNA biochip platform.

Main Results:

• The assay successfully detected single infections and co-infections by multiple pathogens in clinical samples.
• Demonstrated high sensitivity and reduced diagnosis time compared to traditional methods.
• Validated the capability to identify a panel of seven common bacterial and viral pathogens.

Conclusions:

• Multiplex PCR coupled with DNA biochip technology provides an efficient platform for simultaneous multi-pathogen detection.
• This integrated approach offers a valuable tool for enhancing disease prevention and quarantine services in animal facilities.
• The developed method significantly improves diagnostic efficiency for high-throughput screening of animal populations.