Fleas
Why Does the Bubonic Plague Still Exist Today? The Answer Could Be in the Soil.
Last month, a third cat in Wyoming was diagnosed with the plague, two years after a massive outbreak in Madagascar. Are amoebas or rodents to blame?
Who's Really to Blame for the Black Death?
New research refutes the claim that European rodents are responsible for the Black Death.
Scientists Investigate New Pathogen Carried by Rats
Is there a new plague for the 21st century?