Characterizing persistent Post-COVID-19 vaccination symptoms using MedDRA system organ class and preferred term classifications

Abstract Post-COVID-19 Vaccination Syndrome (PCVS) refers to persistent, multisystemic symptoms developing after SARS-CoV-2 immunization. We established a nationwide registry across 14 Japanese outpatient clinics and analyzed 179 “clinically definitive” cases from 279 enrollees (December 2020–August...

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Auteurs principaux:	Akinori Fujisawa, Shinichiro Kodama, Nafuko Konishi, Jun Ueda, Akiko Kitagawa, Eri Okada, Mariko Miyokawa, Yuriko Hirai, Eiji Nakatani, Masanori Fukushima
Format:	Artigo
Langue:	Inglês
Publié:	Nature Portfolio 2026-03-01
Collection:	Scientific Reports
Sujets:	COVID-19 Vaccines/adverse effects Pharmacovigilance Adverse drug reaction reporting systems Post-Acute COVID-19 Syndrome Fatigue syndrome Chronic
Accès en ligne:	https://doi.org/10.1038/s41598-026-43949-z
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