Group B streptococcal infection is a bacterial disease that can infect infants from birth to one-week (early-onset) or from one-week to three months of age (late-onset). Early-onset infection occurs when the infant is infected by the mother (usually during birth). Late-onset infection can be from the mother but usually it is unknown where the infection came from.
Group B streptococcus can cause a blood infection, lung infection, or infection of the fluid surrounding the brain and its lining.
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Source: Integrated Public Health Information System [2006-2015], extracted April 17, 2015.