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Dried Blood Spots - Preparing and Processing for Use in Immunoassays and in Molecular Techniques

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Published on: March 13, 2015

A Multiplex Bead Serology Panel For Vaccine-Preventable Diseases Using Dried Blood Spots.

Paul D Olivo¹, Sudip Ghatak², Randolph Rasch³

¹Department of Microbiology and Microbial Pathogenesis, Washington University Medical School, St. Louis, MO, USA.

Risk Management and Healthcare Policy

|March 25, 2025

Summary

A new multiplex immunoassay using dried blood spots reliably measures antibody levels for 12 vaccine-preventable diseases (VPDs). This tool can identify population protection gaps, aiding targeted vaccination strategies and improving public health outcomes.

Keywords:

antibody protective levels serology vaccine-preventable disease

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Area of Science:

Immunology and Public Health
Vaccinology and Serological Assays

Background:

Vaccine effectiveness relies on population-level immunity, with antibodies to vaccine antigens serving as key protection biomarkers.
Serosurveillance is crucial for targeting vaccination programs, and a standardized multiplex immunoassay can facilitate integrated approaches for multiple vaccine-preventable diseases (VPDs).

Purpose of the Study:

To evaluate the analytical performance of a novel multiplex immunoassay for serosurveillance of 12 VPDs.
To assess the utility of the ImmunoProfile Antibody Test System, utilizing dried blood spot samples, for identifying population protection gaps.

Main Methods:

Analytical validation of the ImmunoProfile Antibody Test System was conducted in a CLIA-certified laboratory using dried blood spot (DBS) samples from adults and children.
Proof-of-principle pilot serosurveillance studies were performed to demonstrate the test's capability in identifying protection gaps in different age groups.

Main Results:

The ImmunoProfile Antibody Test System demonstrated the necessary analytical performance for reliable assessment of protection levels against VPDs.
Pilot serosurveillance studies confirmed that the test effectively identifies protection gaps, yielding results comparable to traditional single-antibody immunoassays using serum.

Conclusions:

The validated ImmunoProfile Antibody Test System is a reliable tool for serological surveys, providing valuable data on population immunity.
This multiplex immunoassay can uncover previously unanticipated vaccination gaps, thereby informing public health strategies and vaccination program planning.