Safety and immunogenicity after a 30month boost of a subtype C ALVACHIV vCP2438 vaccine prime plus bivalent subtype C gp120 MF59 vaccine boost HVTN 100 A phase 12 randomized doubleblind placebocontrolled trial - Vimla Naicker; Fatima Laher; L Bekker; K Seaton; M Allen; E et al; Lynn Morris; Nonhlanhla Mkhize (My University, 2025)