Penicillin-allergic women without a history of anaphylaxis (angioedema, respiratory distress, or urticaria) following administration of a penicillin or a cephalosporin (low risk of anaphylaxis) could receive cefazolin (2 g IV initial dose, then 1 g IV every 8 hours until delivery) instead of penicillin or ampicillin. Clindamycin (900 mg IV every 8 hours until delivery), Erythromycin is not recommended today because the high proportion of GBS resistance to erythromycin (up to 44.8%),Testing for penicillin allergy and can be helpful for all GBS carrying pregnant women and will cancel the frequent use of other antibiotics for GBS-EOD IAP.