Question

Many diseases are caused by viruses or bacteria, which may be considered introduced species under certain circumstances (although viruses are not truly living organisms and need another organism as a host). Describe the following exotic diseases and explain their origins.
1.Smallpox
2.Chestnut blight



I don't need you to do it for me I just need help.

Answer 1

Smallpox- began Africa, spread through trade and human interaction.
Chestnut blight-isn't this a chestnut found in America?