GBS-NN/NN2 (50 µg of Each Fusion Protein [GBS-NN and GBS-NN2] in Combination With 500 µg Aluminum as Alhydrogel®) Given With and Without the Tdap Vaccine in Healthy Non-pregnant Women 18 to 49 Years of Age

The main objectives of the study are to demonstrate the non-inferiority of the immune response induced by co administered GBS-NN/NN2 and tetanus, diphtheria, and acellular pertussis (Tdap) compared to the separate administration of GBS-NN/NN2 and Tdap, to evaluate the reactogenicity of GBS NN/NN2 when administered alone or in combination with Tdap, and to evaluate the safety of GBS-NN/NN2 when administered alone or in combination with Tdap in terms of serious adverse events (SAEs) and unsolicited adverse events (AEs).