This study looks at the body's immune response to a GBS vaccine 2 years after the orginal vaccine(s) were given in the V98P2 study. Blood will be drawn and evaluated for GBS antibody levels.
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Antibody (Ab) response data at 24-months after the last injection given in study V98P2 GMCs, GMRs and associated 95% confidence intervals will also be determined.
Timeframe: 24- months post last injection from V98P2