Effect of HIV status and retinol on immunogenicity to oral cholera vaccine in adult population living in an endemic area of Lukanga Swamps, Zambia. oleh Charlie Chaluma Luchen, John Mwaba, Harriet Ng'ombe, Peter Ibukun Oluwa Alabi, Michelo Simuyandi, Obvious N Chilyabanyama, Luiza Miyanda Hatyoka, Cynthia Mubanga, Samuel Bosomprah, Roma Chilengi, Cleopatra Caroline Chisenga