Population (Antibody) Testing for COVID-19-Technical Challenges, Application and Relevance, an English Perspective.

Area of Science:

• Virology
• Immunology
• Epidemiology

Background:

• Population-based infection and immunity data are vital for disease surveillance and intervention assessment.
• Previous population testing in the UK covered diseases like measles, mumps, rubella, hepatitis, and HIV.
• Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) presents unique biological challenges for immunity testing.

Purpose of the Study:

• To discuss the challenges in SARS-CoV-2 infection testing, focusing on population-based immunity.
• To highlight the need for sensitive and specific antibody assays for seroprevalence and protection assessment.
• To address the urgent requirement for measuring vaccine efficacy and herd immunity development.

Main Methods:

• Review of existing population testing methodologies for infectious diseases.
• Analysis of biological properties of SARS-CoV-2 impacting immunity testing.
• Consideration of antibody assay development for sensitivity and specificity.

Main Results:

• Limited population virus or antibody testing has been performed for various diseases in the UK.
• Developing accurate SARS-CoV-2 immunity tests faces significant challenges.
• The availability of COVID-19 vaccines necessitates robust methods for efficacy and herd immunity measurement.

Conclusions:

• Effective population-based immunity testing for SARS-CoV-2 is essential for pandemic management.
• Overcoming technical hurdles in antibody assay development is critical.
• National studies are crucial for understanding SARS-CoV-2 infection and immunity within the UK population.