1. 1. Morgan JA, Zafar N, Cooper DB. Group B Streptococcus and Pregnancy. In: Stat Pearls. Treasure Island (FL): Stat Pearls. 2021.
2. 2. Verani JR, McGee L, Schrag SJ. Division of Bacterial Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention (CDC). Prevention of perinatal group B streptococcal disease – Revised guidelines from CDC, 2010. MMWR Recomm Rep. 2010;59:1‑36.
3. 3. Schrag SJ, Verani JR. Intrapartum antibiotic prophylaxis for the prevention of perinatal group B streptococcal disease: experience in the United States and implications for a potential group B streptococcal vaccine. Vaccine. 2013;31:20-6.
4. 4. Russell NJ, Seale AC, O’Driscoll M, O’Sullivan C, Bianchi-Jassir F, Gonzalez-Guarin J, et al. Maternal colonization with group B Streptococcus and serotype distribution worldwide: systematic review and meta-analyses. Clin Infect Dis. 2017;65(suppl_2):100-11.
5. 5. Hadavand S, Ghafoorimehr F, Rajabi L, Davati A, Zafarghandi N. Frequency of Group B Streptococcal Colonization in Pregnant Women Aged 35- 37 Weeks in Clinical Centers of Shahed University, Tehran, Iran. Iran J Pathol. 2015;10(2):120-6.