[Serological reaction systems using enzyme-labelled immunospecific reagents].

Area of Science:

• Microbiology
• Immunology
• Biochemistry

Background:

• Yersinia pestis poses a significant public health threat.
• Accurate serological diagnostic tools are crucial for plague detection and control.
• Enzyme immunoassays (EIA) offer sensitive detection methods.

Purpose of the Study:

• To describe and evaluate serological test systems for Yersinia pestis.
• To compare the sensitivity of different enzyme immunoassay (EIA) schemes.
• To identify optimal reagent compositions for plague antigen and antibody detection.

Main Methods:

• Development of enzyme-labeled immunospecific reagents.
• Application of different enzyme immunoassay (EIA) schemes.
• Comparative evaluation of assay sensitivity for antigen and antibodies.

Main Results:

• EIA systems require monoclonal antibodies to the capsular antigen.
• Staphylococcal protein A and conjugates with horse-radish peroxidase are key reagents.
• The described EIA systems demonstrate high sensitivity for antigen and antibody detection.

Conclusions:

• The developed serological test systems significantly improve Yersinia pestis detection reliability.
• EIA techniques offer a reliable method for assaying individual samples for plague markers.
• Optimized EIA reagent sets enhance diagnostic accuracy for Yersinia pestis infections.