Epidemiologic characteristics of invasive group B streptococcal infections caused by rare serotypes among adults in the United States, 2007–2023

Abstract

Using CDC’s Active Bacterial Core surveillance data, we observed increasing incidence of rare group B Streptococcus serotypes VI and VIII, from 0.007 and 0 cases per 100,000 in 2007 to 0.14 and 0.13 in 2023, respectively. These serotypes disproportionally impacted American Indian/Alaska Native, Asian, and Native Hawaiian/Pacific Islander populations.

Publication information

Originally published in PLOS Global Public Health on 2026-04-21. Original DOI: 10.1371/journal.pgph.0006205.

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