When the Flu Virus finally collides with the Ebola virus and creates an airborne super virus killing people instantly and resurrecting them into sweating, bunged up, sneezing zombies.
When the public thinks they have Ebola but have not come into any form of contact with someone who has it. A combination of flu with Ebola =flubola. Normal viral illness.
"I have vomiting. Diarrhea and a cough."
"Ohmygosh! you have flubola"