The Hospital Real de San Jose de los Naturales, and the evidence in its graves

A royal hospital in Mexico City founded to treat the indigenous population - the first in Mexico dedicated to it - whose cemetery has been excavated. Over 600 people lie in mass burials laid down in haste, the shape of an epidemic. Ancient DNA from the teeth has identified African-born people buried there and reconstructed the viruses they carried, including one that passed to an indigenous man in the same city. The institution and its cost are in the same ground.