# Surveillance and identification of variants of concern within circulating SARS-CoV-2 across Kentucky

> **NIH NIH P20** · UNIVERSITY OF LOUISVILLE · 2021 · $778,440

## Abstract

PROJECT SUMMARY
The emergence and circulation of SARS-CoV-2, the virus that causes COVID-19 disease, has led to >125 million
infections and more than 2.5 million deaths worldwide in just over 1 year. Global sequencing efforts have
identified several viral variants of concern (VOC) and interest (VOI) that result in increased transmission rates
and/or increased mortality for those infected with the new SARS-CoV-2 strains. Despite the development of
multiple robust and effective vaccines, further viral evolution may result in resistance to current levels of vaccine-
mediated protection. Ongoing viral genomic surveillance is necessary to identify and characterize known and
new viral variants, to inform both ongoing public health efforts, and future vaccine design strategies. This is a
particularly urgent need for Institutional Development Award (IDeA) states, for which knowledge of circulating
SARS-CoV-2 variants is extremely limited. The mechanistic forces driving SARS-CoV-2 diversification and
variant emergence are certainly multifactorial. Effective natural and vaccine antiviral protection is thought to be
mediated by potent, broadly reactive neutralizing antibodies (nAbs). Recently developed genotyping assays have
characterized the extensive diversity within immunoglobulin (IG) loci, with increasing evidence suggesting that
the collective array of genes that encode antibody repertories differ widely across ethnic populations. Moreover,
recent reports suggest that biological sex may impact immunopathogenesis and individual resilience, and that
geographically restricted circulation and transmission of variants, along with pre-existing social vulnerabilities
may also impact SARS-CoV-2 variant dynamics. It is well documented that COVID-19 disproportionately impacts
underrepresented populations, including Black, Indigenous and people of color (BIPOC) and Latinx peoples.
Data regarding SARS-CoV-2 circulation and variant profiling in these populations in also underreported in
ongoing viral surveillance efforts. Evaluating how viral VOC and VOI are impacted by differential genetic,
biological and social backgrounds will be critical for providing equitable representation of the frequency and
characteristics of SARS-CoV-2 variants, and act as a first step towards mechanistic hypothesis generation for
future studies. Using a robust, high throughput and cost-effective single molecule, real-time sequencing
approach, we propose to perform large scale SARS-CoV-2 genomic surveillance from ~7000 samples sourced
across Kentucky (KY) to (1) substantially improve data availability regarding SARS-CoV-2 dynamics and variant
circulation, (2) evaluate biological and social correlates of variant emergence and evolution, and (3) leverage
this pipeline to develop a unique curriculum in pathogen surveillance. To achieve this, we have built a multi-
institutional collaborative effort, developing key partnerships among a deep network of academic, healthcare,
and industrial st...

## Key facts

- **NIH application ID:** 10381183
- **Project number:** 3P20GM135004-02S1
- **Recipient organization:** UNIVERSITY OF LOUISVILLE
- **Principal Investigator:** Jason A. Chesney
- **Activity code:** P20 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2021
- **Award amount:** $778,440
- **Award type:** 3
- **Project period:** 2020-02-01 → 2025-01-31

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/10381183

## Citation

> US National Institutes of Health, RePORTER application 10381183, Surveillance and identification of variants of concern within circulating SARS-CoV-2 across Kentucky (3P20GM135004-02S1). Retrieved via AI Analytics 2026-05-24 from https://api.ai-analytics.org/grant/nih/10381183. Licensed CC0.

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