how did disease spread during the columbian exchange
The Columbian Exchange: A History of Disease, Food, and Ideas. Nathan Nunn and Nancy Qian. The Columbian Exchange refers to the exchange of diseases, ideas, food. crops, and populations between the New World and the Old World. following the voyage to the Americas by Christopher Columbus in 1492.
The passage from the Old Word to the New World in the Columbian Exchange was made by animals as well as humans. Both the non-domesticated and the domesticated animals made an impact on the New World. For example some of these impacts were the transformation of the grasslands and revolutionizing of labor.