http://wwwnc.cdc.gov/eid/articles/is...le-of-contents
There are two articles at the following link one is a bioterrorist attack using smallpox and the other article is the aftermath of such an attack. They date from 1999.
There are some similarities to the game. The big difference is in the delivery method and that the virus was not a bioengineered attack like the one we see in the Division.

