Conquistador Contagion
A pathogen possibly responsible for one of several catastrophic sixteenth-century epidemics in Mexico has been identified in DNA taken from the teeth of several of its victims. The 1545 huey cocoliztli, or “great pestilence,” as it was called at the time in the Nahuatl language, raged through Mesoamerica 25 years after the Spanish arrived, killing tens of millions. Working with genetic material from 29 individuals buried in the only known cemetery from the 1545 outbreak, a team from Germany’s Max Planck Institute for the Science of Human History has discovered the presence of Salmonella enterica serovar Paratyphi C, a bacterium that causes paratyphoid fever. It’s rare today but has a high mortality rate if untreated. Max Planck’s Christina Warinner says, “People have been wondering about the cause of this epidemic for 500 years.”
This story is from the May/June 2018 edition of Archaeology.
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This story is from the May/June 2018 edition of Archaeology.
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