On the first of a two part series, Brock sits down with Dr. Mark Ruder. Mark specializes in free-ranging wildlife population health, with an emphasis in pathology. On this episode, they talk about vertical transmission of CWD, the caveats of CWD testing with RT-QuIC, defining hemorrhagic disease (HD), its effects on an animal, immunity, genetics, the culicoides and different strains of HD, and livestock.