Comic-Cough is a virus similar to the para-influenza virus, and the common chest cold. It was originally diagnosed as a form of tracheobronchitis, but was later filed as an "unclassified" human illness. This unpublicized status has allowed the CDC (Centers for Disease Control) to deny it's existence to this day.
Clinical signs of infections occur 2-14 days after exposure, and if uncomplicated with other agents, or bacteria, symptoms will last around 10 days.
Uninfected: Get the hell away from me, you know that Spock sucker has Comic-Cough right?
Uninfected 1: Hey, did you hear?
Uninfected 2: About what?
Uninfected 1: Joss Whedon has discovered a cure for Comic-Cough!
Uninfected 2: Merciful Zeus!