For instance, last year we reported on research that used microbial DNA analysis of human remains to identify the likely pathogens that killed many soldiers in Napoleon’s army in 1812. Two pathogens in particular stood out: Salmonella enterica , which causes paratyphoid fever , and Borrelia recurrentis , which is transmitted by body lice and causes relapsing fever . Both are consistent with written contemporary accounts. Evolution of a virus Cambridge, Trinity College, MS B. 10. 5, fol
