Durability of Antibody Response and Frequency of SARS-CoV-2 Infection 6 Months after COVID-19 Vaccination in Healthcare Workers

Eric D. Laing, Carol D. Weiss, Emily C. Samuels, Si'Ana A. Coggins, Wei Wang, Richard Wang, Russell Vassell, Spencer L. Sterling, Marana S. Tso, Tonia Conner, Emilie Goguet, Matthew Moser, Belinda M. Jackson-Thompson, Luca Illinik, Julian Davies, Orlando Ortega, Edward Parmelee, Monique Hollis-Perry, Santina E. Maiolatesi, Gregory WangKathleen F. Ramsey, Anatalio E. Reyes, Yolanda Alcorta, Mimi A. Wong, Alyssa R. Lindrose, Christopher A. Duplessis, David R. Tribble, Allison M.W. Malloy, Timothy H. Burgess, Simon D. Pollett, Cara H. Olsen, Christopher C. Broder, Edward Mitre*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antibodies decay but persist 6 months postvaccination; lower levels of neutralizing titers persist against Delta than wild-type virus. Of 227 vaccinated healthcare workers tested, only 2 experienced outpatient symptomatic breakthrough infections, despite 59/227 exhibiting serologic evidence of SARS-CoV-2 infection, defined as presence of nucleocapsid protein antibodies.

Original languageEnglish
Pages (from-to)828-832
Number of pages5
JournalEmerging Infectious Diseases
Volume28
Issue number4
DOIs
StatePublished - Apr 2022
Externally publishedYes

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