Answer:
Here's an essay for the Black Plague, Your picture wasn't clear, so I wrote you an essay instead
Step-by-step explanation:
Bubonic plague is an infection spread mostly to humans by infected fleas that travel on rodents. Called the Black Death, it killed millions of Europeans during the Middle Ages. Prevention doesn't include a vaccine, but does involve reducing your exposure to mice, rats, squirrels and other animals that may be infected.