<human>:  Could amoebas have played a part in the Black Death?
<bot>: Yes, Amoebas could have played a part in the Black Death. The Black Death is a bacterial disease called bubonic plague. Yersinia pestis has been found to grow and thrive inside amoebas. Bubonic plague is caused by Yersinia pestis. Yersinia pestis has been found to grow and thrive inside amoebas.