“…The disadvantages of giving intravenous antibiotics in labour include the development of antibiotic resistance in GBS and other bacteria, and the disruption of the early growth of good bacteria in the newborn's gut (Baltimore, 2007;Centers for Disease Control and Prevention, 2010;Cheng et al, 2006;Daley & Isaacs, 2004;Edwards, 2006;Grimwood et al, 2002;Ohlsson & Shah, 2013;Pattern et al, 2006;Rautava et al, 2012;Russel & Murch, 2006). In the United States and Canada, 20 to 35 per cent of labouring women now receive intravenous antibiotic prophylaxis (Baltimore, 2007;Centers for Disease Control and Prevention, 2010;Chen et al, 2005;Glasglow et al, 2005;Pattern et al, 2006).…”