Serogroup Y Clonal Complex 23 Meningococcus in China Acquiring Penicillin Resistance from Commensal Neisseria lactamica Species

Abstract

Invasive meningococcal disease (IMD) due to serogroup Y Neisseria meningitidis (NmY) is rare in China; recently, an invasive NmY isolate, Nm512, was discovered in Shanghai with decreased susceptibility to penicillin (Pen NS ). Here, we investigated the epidemiology of NmY isolates in Shanghai and explored the potential commensal Neisseria lactamica donor of the Pen NS NmY isolate.