We talked about the plague in class on Wednesday. Then I saw these two posts online:
Rats not involved with plagues, because there weren’t any dead rat infestations.
Yersinia Pestis WAS present with plague victims, not before that. So, while the rats did not deliver, what we thought was the Black Death apparently was.
So how was it spread? Perhaps through the air or by fleas, which do not need to have rats.