Final answer:
The plague, also known as the Black Death, was brought to Messina by ships that arrived from the Black Sea in October 1347.
Step-by-step explanation:
The plague, also known as the Black Death, was brought to Messina by ships that arrived from the Black Sea in October 1347. These ships were carrying infected rats that carried fleas infected with the bacterium Yersinia pestis. When the rats died, the fleas moved onto humans, transmitting the disease.
Learn more about The spread of the plague in Messina