… typhus — as well as Bartonella quintana (the agent of “ … bacterial pathogens. To avoid false positives, the researchers concluded that an infection … uniquely matched that particular bug.  Even then, the … the world understood the germ theory of disease. They …

… uncovered traces of two infectious agents responsible for … presence of these two bacteria comes after a previous … the trench fever agent, Bartonella quintana, pathogens long believed … capable of unambiguously identifying infectious agents from these …

… them, pointing to two infectious agents as the culprits. … able to unequivocally identify infectious agents from these weak … was not only these infections that caused the French … and Bartonella quintana. In other words, there were four infectious agents …

… the French army succumbed to infectious diseases. (CREDIT: Current Biology)Ancient … (Rickettsia prowazekii) and trench fever (Bartonella quintana), which were suspected for … . With each reconstructed chunk of bacterial DNA, researchers can now revisit …

… collapse – or whether other infections better fit the evidence. Reexamining … detect R. prowazekii or Bartonella quintana (the cause of … uncover the history of infectious diseases that we wouldn … the ranks. Together, these infections could have produced waves …

… genetic signatures of two infectious agents: Salmonella enterica  … presence of these two bacteria comes after a previous … the trench fever agent, Bartonella quintana, pathogens long believed … capable of unambiguously identifying infectious agents from these …

… traces of Rickettsia prowazekii or Bartonella quintana, the cause of “trench …  to quench thirst, likely ingesting bacteria from contaminated water sources. The … survival, leaving soldiers defenseless against infection. What began as scattered outbreaks …

… evidence for Rickettsia prowazekii, the bacteria that cause typhus, using … are ill with a systemic infection that gets into their … the typhus-causing bacteria, as well as Bartonella quintana, which causes … search for fragments of that germ’s DNA. With modern …

… the French army died of infectious diseases during the Great Retreat … . This provides direct evidence of infectious agents that could have contributed … prowazekii, which causes typhus, or Bartonella quintana, which leads to trench …

… (the cause of typhus) and Bartonella quintana (responsible for trench fever … methods capable of unambiguously identifying infectious agents from these weak signals … connection strengthens the theory that infectious diseases contributed to the disastrous …