Who To Blame...A Bacterial Disease or A Virus?

     The main theory of how the Black Death all started is that it was a bacterial disease. The bacteria is called Yersinia pestis.  It sounds like a pest to me! It is spread through direct contact. There are 3 different kinds of the plague that were caused by the Yersinia pestis. There is the Bubonic plague, the Septicemic  plague, and lastly, the Pneumonic plague. the most heard of being the Bubonic plague. Some scientists believe this was the cause of the Black Death, but others are not as convinced as they are.
     There are many theories as to what caused the epidemic. Some scientists say that the Black Death was caused by an Ebola-like virus. the Ebola virus effects the cells on the inside of people's blood vessels. Although a lot of the theories sound like they are spot on, they are just that. Theories. No one can say for sure what the cause of the outbreak was. All people know about the Black Death is that it is contagious, and through that, the plague has killed 35 million people in Europe alone. 75 million was around the total for the world-wide death count.