This is actually an article recounting a few primary sources on the ground at the time of contact, and almost immediately mentions the Aztecs’ enemies in Tlaxcala and Chacla along with a cemetery study of the Mixtec—who suffered some of the worst of Aztec dominion—to describe the interplay between the effects of colonial policies and the “virgin soil” of the new world’s immune systems, which, naturally, weren’t limited to the “third reich” state in control at the time of contact.