1. The Spread of the Black Death
... , resistance to antibiotics. This disease left many cities abandoned and those abandoned cities to never be occupied by a civilization again. As stated before many question the actual spread of the disease, studies show that authentic sequences for ancient pathogens provide that the black death was caused by a Yersinia pestis variant that is found in some modern isolates. Although, Yersinia pestis was found to be ... the cause of the Black Death it was a variant of the disease and can only be found in medieval ... are they traveling to other cities to see if anyone else is contracting t...
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- Grade Level: Undergraduate