Plague refers to several types of bacterial infections. The Black Death is believed to involved bubonic plague because of the characteristic symptom described in all sorts of records:
I guess a hemorrhagic fever can't be ruled out though.
Ebola, in the form that requires fluid transfer, won't spread all that quickly in the U.S., where people aren't all that skeptical of doctors and tend to react to disease threats by avoiding touching things (as I understand it, burial practices involving touching the bodies are a significant source of infection in the current outbreak).
http://en.wikipedia.org/wiki/Bubo
I guess a hemorrhagic fever can't be ruled out though.
Ebola, in the form that requires fluid transfer, won't spread all that quickly in the U.S., where people aren't all that skeptical of doctors and tend to react to disease threats by avoiding touching things (as I understand it, burial practices involving touching the bodies are a significant source of infection in the current outbreak).