d because of the speed of epidemic, contagion, symptoms, immunity and seasonality, variations of the medieval and modern plague the two are possibly different diseases. The presentation was an enlightening look at the debate of the two plagues.
? The speed of the epidemic is different.
? The contagion, or what causes the plague, is different.
? The symptoms are different.
? There is immunity to the medieval plague, but not the modern plague.
? The seasonality to which the plague occurred is different.