In my 2005 thriller ‘Armageddon Strain’, scientists combined the current form of H5N1 with ebola to form a ruthless killer. Though my book is fiction, it’s rooted in reality. With this in mind, I suggest reading this excellent article about the recent study of a modified H5N1 virus with a 60% lethal rate:
Killer bird flu? What’s behind the controversy over bird flu research – chicagotribune.com.