Author

M. Briggs-Hagen

3 papers indexed here

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Open access Sep 2026

How age and underlying conditions affect incidence of hospitalization and death after documented COVID-19 diagnosis among individuals aged >=20 years, a retrospective cohort study using PCORnet, April 2022 to March 2025

Abstract Background: COVID-19 vaccinations, therapeutics, and immunity from infection have reduced COVID-19 severity. It is unknown to what extent previously identified risk factors, age and underlying medical conditions (UC), remain associated with severe COVID-19 incidence. Methods: Using electronic health record (EH...

E. Koumans, G. Derado, M. Shah et al. · medRxiv · 0 citations

Review Open access Sep 2026

Characteristics Associated With Persistent Long COVID Symptoms in Healthcare Personnel Infected With SARS-CoV-2 Between August 2022 and May 2024: A Multicenter Cohort Analysis of US Healthcare Personnel.

BACKGROUND Long COVID affects a significant proportion of COVID-19 survivors. This study examined persistent Long COVID symptoms among healthcare personnel (HCP) and evaluated associations with vaccination, prior SARS-CoV-2 infection, underlying health conditions, and demographics. METHODS COVID-19-positive HCP were...

Eric Kontowicz, Amanda K. Irish, Lilly C. Lee et al. · American Journal of Industri... · 0 citations

Open access Jul 2026

Immune correlates of risk for SARS-CoV-2 infection in children: a prospective, community-based cohort study

It is revealed that higher nucleocapsid-binding and Omicron-specific neutralizing antibodies significantly reduce infection risk, suggesting these markers could guide tailored vaccination strategies and risk assessments in pediatric populations.

K. Hoffman, Grace Marshall, C. Frivold et al. · Nature Communications · 0 citations