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Prevalence of group B streptococcus (GBS) capsular polysaccharide (CP) serotypes. Strains were isolated globally from 901 infants with invasive disease (A), 199 infants with invasive disease in the United States (B), and 81 adults in the United States colonized by GBS (C). When combined, the GBS6 serotypes cover >98% of isolates in each collection.
