Dynamics of prophage-based host bacteria-phage associations before and after FMT. (A) Distributions of host-related bacterial classifications for the prophages detected in pre-FMT, post-FMT, and donor samples. (B) Distributions of the viral taxa of the activated prophages from each bacterial phyla in the pre-FMT, post-FMT, and donor samples. (C) Detected circular prophage-based host bacteria-phage associations. The associations in red boxes are related to bacteria, which were observed in the pre-FMT samples but not in the post-FMT samples. Along with host bacteria, corresponding bacteriophages were not observed in the post-FMT samples.