What is group B streptococcus (GBS)?
Group B streptococcus is one of the many types of bacteria that live in the body and usually do not cause serious illness. It is found in the digestive, urinary, and reproductive tracts of men and women. In women, it can be found in the vagina and rectum. GBS is not a sexually transmitted infection (STI). Also, although the names are similar, GBS is different from group A streptococcus, the bacteria that causes “strep throat.”