Given what day it is, I was about to start a mini-🧵 on this Nature study on the earliest documented treponema genomes (the organisms involved in syphilis & a couple of related diseases). But then I saw that the editors at Nature had posted a "notice of concern": www.nature.com/articles/s41... 🧪

Redefining the treponemal history through pre-Columbian genomes from Brazil - Nature

Reconstruction of four Treponema pallidum genomes associated with human remains from around 2,000 years ago suggests that T. pallidum existed in the Americas and diverged to its modern subspecies befo...