In this blog, I’ll dive into the research and evidence behind GBS, helping you understand what it is, why routine tests are done, when they’re performed, and what your options are. First off, what is GBS? GBS stands for 'Group B streptococcus' (also known as Group B strep). GBS is a common type of bacteria that live in the intestines, urinary and genital tract. It is estimated that between 10% and 30% of pregnant women carry GBS. "GBS is passed from one person to another by