20-40% of. Women carry gbs at the vagina and rectum. During pregnancy, at 36 weeks, culture are taken and if positive, treatment recommended to avoid a potential fatal infection on the baby while delivering. Also a rare cause of sepsis with the mother. Also infection on the elderly and the inmunocompromise patient like diabetics and liver disease. If you are healthy, you have nothing to worry.
Alot. Group b streptococcus or streptococcus agalactiae colonizes or is part of normal colonic and vaginal flora. It can be transmitted to neonates at birth causing neonatal sepsis. This organism causes many different infections in adults including female genital tract infections, pneumonia, endocarditis, septic arthritis, osteomyelitis, skin and soft tissue infections and meningitis.