(HealthDay News) -- Group B streptococcus (GBS) is a bacterium that is found in as many as 30 percent of pregnant women, the American Congress of Obstetricians and Gynecologists says.
GBS is not sexually transmitted, and although it has a similar name, it is not the bacterium that causes strep throat.
Most babies exposed to the germ don't get sick, but a few develop serious complications. That's why many women are treated with antibiotics during delivery as a precaution.
The ACOG says these women are candidates for precautionary treatment: