Effects of an acidic enteral formula containing two types of prebiotics on the intestinal environment and the antibody titers in enterally fed patients: an open-label, randomized controlled trial - Effects of an acidic enteral formula containing prebiotics on the intestinal environment and acquired immunity

Bifidobacterium counts increased significantly in F group compared with C group. Few subjects in this study attained seroprotective titers against A/H3N2 and B antigens after influenza vaccination in either group, though the seroprotective rates against A/H1N1 were enhanced. The enhanced HI antibody titers against A/H1N1 were maintained in F group for a longer period compared with C group.