Epidemiologic analysis reveals rising rare serotype infections in diverse populations, highlighting public health concerns.
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.
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Haldeman et al. (2026) studied this question.
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