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Invited Commentary
February 18, 2019

Group B Streptococcus, an A-List Pathogen in Nonpregnant Adults

Author Affiliations
  • 1Division of Infectious Diseases, Massachusetts General Hospital, Harvard Medical School, Boston
JAMA Intern Med. 2019;179(4):488-489. doi:10.1001/jamainternmed.2018.7296

Group B Streptococcus (GBS) is a frequent colonizer of the human gastrointestinal tract, gynecological tract, and skin. It has been recognized as a major cause of infections in pregnant women and neonates since the 1970s. In nonpregnant adults, sporadic case reports of GBS infections date back to the 1940s, shortly after the serological classification of hemolytic streptococci into groups.1 However, only recently has GBS been recognized as a major cause of infections in this population.

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