The Black Death was later known as
bubonic plague when the bacteria
Yersinia pestis was carried by fleas
. It was also known as
pneumonic plague in its airborne state which was spread by people who were coughing in close proximity to others.
The worst form of Ebola is caused by the
Bundibugyo virus, which is an orthoebolavirus.
Ebola symptoms are distinguished from plague because Ebola presents with catastrophic hemorrhaging (bleeding) whereas plague does not include the symptom of hemorrhaging.
Plague (Yersinia pestis) has been firmly established as the cause of the Black Death through forensic analysis of the graves of plague victims.
DNA analysis has revealed the presence of 'Yersinia Pestis' - the pathogen that causes plague - in skeletal remains from individual burials in medieval Cambridgeshire, confirming for the first time that not all plague victims were buried in mass graves. Compassion and care were shown to victims...
www.sciencedaily.com
One of the cautions of exploring these graves is the risk of encountering live bacteria.