Neisseria flavescens QC Overview

Neisseria flavescens is a Gram-negative, oxidase-positive diplococcus in the family Neisseriaceae, typically found as a commensal of the human oropharynx and nasopharynx. It is generally non-pathogenic but has rarely been reported in cases of meningitis, septicaemia, and endocarditis, primarily in immunocompromised hosts. N. flavescens participates actively in horizontal gene transfer within the genus, and its genome can serve as a reservoir of antimicrobial resistance determinants, including penA alleles, that may transfer to pathogenic Neisseria species.