In this presentation, Dr. Gaber Abdellrazek, a postdoctoral fellow who is currently researching the pathogenic mechanism of MAP with Dr. William Davis, explains their lab’s latest findings. They have discovered that the deletion of a single gene cripples Map’s ability to establish a persistent infection. This led to the discovery of a peptide with potential for development as a vaccine. Studies with the peptide in tissue culture show vaccination leads to development of immune cells that can kill Map inside macrophages, an essential requirement for a vaccine against intracellular pathogens. While this is being investigated in cattle, it could have implications for human health as well.