Four skeletons in a prehistoric burial site in Brazil contain the DNA of bacteria that belong to the same family as syphilis, giving clues as to the infection’s origin
Four skeletons in a prehistoric burial site in Brazil contain the DNA of bacteria that belong to the same family as syphilis, giving clues as to the infection’s origin Four skeletons in a prehistoric burial site in Brazil contain the DNA of bacteria that belong to the same family as syphilis, giving clues as to the infection’s origin