Black Death

If you are thinking about the Coronavirus disease 2019, this disease was released on parasites, to rats, to humans, and this IMPORTANT pandemic lasted from 1346 to 1353. It killed a quarter of Europe, and lasted for 7 years, about the amount of time that an infant would be in 2nd grade(born in 1346). 
Biography
It started during a ride on a ship to Europe, when parasites and rats were on the ship. Parasites infected rats, and then they infected humans. People tried to seek medical help. But at that time, not much people knew traditional medicine. From sneeze to cough, MILLIONS OF PEOPLE DIED. But no one knew that after the Black Death, the Spanish Flu would be its revenge.
Cure
People tried to help, when one day, someone tried to go to their house, and name that treatment “Quarantine”. People tried quarantine, and they stayed at home. Soon, Black Death was cured!
Category:Biology