Diminished neutralizing activity against the XBB1.5 strain in 55.9% of individuals post 6 months COVID-19 mRNA booster vaccination: insights from a pseudovirus assay on 1,353 participants in the Fukushima vaccination community survey, Japan

Autor: Tianchen Zhao, Yuta Tani, Chieko Makino-Okamura, Morihito Takita, Chika Yamamoto, Eiki Kawahara, Toshiki Abe, Sota Sugiura, Hiroki Yoshimura, Taiga Uchiyama, Isato Yamazaki, Harumichi Ishigame, Takaharu Ueno, Kazu Okuma, Masatoshi Wakui, Hidehiro Fukuyama, Masaharu Tsubokura
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Frontiers in Immunology, Vol 15 (2024)
Druh dokumentu: article
ISSN: 1664-3224
DOI: 10.3389/fimmu.2024.1337520
Popis: This study investigates the neutralizing activity against the XBB1.5 variant and the ancestral strain in a population post-bivalent vaccination using a pseudo virus assay validated with authentic virus assay. While bivalent booster vaccination and past infections enhanced neutralization against the XBB 1.5 strain, individuals with comorbidities showed reduced responses. The study suggests the need for continuous vaccine updates to address emerging SARS-CoV-2 variants and highlights the importance of monitoring real-world immune responses.
Databáze: Directory of Open Access Journals