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Overlapping Clinical Presentation of Long COVID and Postacute COVID-19 Vaccination Syndrome: Phenotypes, Severity, and Biomarkers.

Clinical infectious diseases : an official publication of the Infectious Diseases Society of America - 20 May 2026

Purpura Lawrence, Heisler Thomas, Palmer Steven, Shah Jayesh, Graham Abigail, Seo Ga Young, Sturiza Antonia, Javier Xiomara, Pinto Giselle, Rosa Amanda, Bosco Joan, Reis Karl, Sobieszczyk Magdalena E, Yin Michael T

Abstract excerpt

BACKGROUND: Postacute sequelae of COVID-19 (PASC), also known as long COVID, and postacute COVID-19 vaccination syndrome (PACVS) present overlapping but distinct clinical challenges. We hypothesize that PASC and PACVS share clinical features but differ in symptom patterns and biomarker profiles. This study aims to identify differences in presentation and distinguish immunologic biomarkers relevant to general...

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Identifiers

PMID: 41510565
DOI: 10.1093/cid/ciaf624
PMCID: PMC13189662

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026.

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