Safety and immunogenicity of a recombinant double-mutant heat-labile toxin derived from enterotoxigenic Escherichia coli in healthy Bangladeshi adults delivered by three different routes. - Bhuiyan TR; Khanam F; Basher SR; Dash P; Chowdhury MI; Haque S; Harun NB; Akter A; Karmakar PC; Hakim A; Amin S; Kamruzzaman M; et al. (Frontiers in bacteriology, 2025)