
Bruce Banner has a cold. Well, the flu, really. He gave it to himself, just to make sure he really can’t turn into the Hulk anymore. His snot is yellow, not green.
Source: io9 – This Is What It Sounds Like When Hulks Cry

Bruce Banner has a cold. Well, the flu, really. He gave it to himself, just to make sure he really can’t turn into the Hulk anymore. His snot is yellow, not green.
Source: io9 – This Is What It Sounds Like When Hulks Cry