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Definition
By Mayo Clinic staffGroup B streptococcus (strep) is a common bacterium often carried in your intestines or lower genital tract. Although group B strep is usually harmless in adults, it can cause serious illness in newborns — a condition known as group B strep disease.
Group B strep can also cause dangerous infections in adults with certain chronic medical conditions, such as diabetes or liver disease. Older adults are at increased risk of illness due to group B strep, too.
If you're a healthy adult, there's nothing you need to do about group B strep. If you're pregnant, get a group B strep screening test during your third trimester. If you have group B strep, antibiotic treatment during labor can protect your baby.
Symptoms- Repke JT, et al. Patient information: Group B streptococcus and pregnancy. http://www.uptodate.com/home/index.html. Accessed Aug. 12, 2008.
- Group B strep prevention: Frequently asked questions. Centers for Disease Control and Prevention. http://www.cdc.gov/GroupBStrep/general/gen_public_faq.htm. Accessed Sept. 2, 2008.
- Group B strep prevention: Beyond newborns and mothers - some facts about group B strep disease in the rest of the population. Centers for Disease Control and Prevention. http://www.cdc.gov/groupbstrep/general/gen_public_adult.htm. Accessed Sept. 2, 2008.
- Group B strep prevention: Protect your baby from group B strep! Centers for Disease Control and Prevention. http://www.cdc.gov/groupbstrep/general/protect-your-baby-GBS.htm. Accessed Sept. 2, 2008.
- Puopolo KM, et al. Group B streptococcal infection in pregnant women. http://www.uptodate.com/home/index.html. Accessed Aug. 12, 2008.
- Urinary tract infections in women. American Academy of Family Physicians. http://familydoctor.org/online/famdocen/home/women/gen-health/190.html. Accessed Sept. 16, 2008.
- Puopolo KM, et al. Group B streptococcal infection in neonates and young infants. http://www.uptodate.com/home/index.html. Accessed Aug. 12, 2008.
- Baron M, et al. Group B streptococcal infection in nonpregnant adults. http://www.uptodate.com/home/index.html. Accessed Aug. 12, 2008.
