1. Here is some startling information on the disease of Yellow Fever.

2. Common known Facts
Although often thought to be a number one killer of Native Americans it is not, that would be smallpox, followed by measles, influenza and bubonic plague.
It is a virus carried by mosquitoes
Originated in Africa and brought over during the slave trade
Hit the US in two different epidemics (

3. Little known facts
Often used as a biological weapon against Native American to reduce number due to their lack of immunity.