Two different genotypes of <i>Vibrio parahaemolyticus</i> serotype O10:K4 have been co-circulating in Shanghai since 2020.

ABSTRACT: In this study, we conducted serotyping, virulence gene detection and whole-genome sequencing on Vibrio parahaemolyticus strains collected from the Shanghai area between 2017 and 2021. A total of 369 genomic sequences of different serotypes were obtained, including 155 serotype O10:K4 strains. It was found that the O10:K4 serotype presents two subtypes (O10:K4_α and O10:K4_β) co-circulated. They were both pandemic strains. Since 2020, the serotype O10:K4 has become the new dominant serotype in the Shanghai area. Among them, the O10:K4_α subtype first appeared in the Shanghai area in 2019, while the O10:K4_β subtype first appeared in 2020. However, the O10:K4_β subtype has a broader range of prevalence than the O10:K4_α subty

SUBMITTER: Wang C 

PROVIDER: S-EPMC12921580 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature