Answer:
The term "Columbian Exchange" alludes to the extensive movement of organisms between the Americas and the Old World (Europe, Africa, and Asia) as a result of Christopher Columbus's explorations in the late 15th century. The following three illnesses are shared along the Columbian Exchange:
- Smallpox: The virus that causes smallpox is extremely contagious and fatal, and it first appeared in the Old World. Europeans transported it to the Americas, where it wreaked havoc on native populations that had no prior exposure to or immunity to the virus.
- Measles: The highly contagious viral disease measles also has its roots in the Old World. Measles was also brought to the Americas by European explorers and immigrants, and like smallpox, it caused extensive disease and fatalities among local communities.
- Syphilis: A bacterial infection spread through sexual contact that is thought to have its roots in the Americas. Columbus's crew returned to Europe with syphilis, which later spread to Asia, Africa, and Europe, resulting in substantial illness and mortality.