Group B Streptococcus in Pregnancy
Group B streptococcus (GBS) is one of many bacteria that normally live in our bodies and usually cause no harm. This is called GBS carriage, colonisation with GBS or carrying GBS.
About a quarter of pregnant women in the UK are estimated to carry GBS. As a result, many babies come into contact, and are colonised with, GBS around the time of labour and birth. The vast majority of babies are unaffected, but a small number become seriously ill with GBS infection.
GBS can cause life threatening complications to the new born and therefore our doctors support prenatal screening for this easily treated infection.