Answer:
De'Mussis (1348): The plague was transmitted to Europeans by the hurling of diseased bodies into the city of Caffa and Italians fleeing from the city brought it to other Mediterranean ports. Mortality rates were high, differing from 1/7 Genoese people survived, to more than 70% of people in Venice. He accounts the plague to God's judgment and vengeance on sinners and begs that God show mercy to the just.