Yes, it’s Stop Swine Flu, the video game.
The action starts with a schplouuush of green mucus hitting your screen, then switches to a street somewhere. Your avatar stands among pedestrians. The background noises are coughs, sneezes, noses being blown. Choose your moment, then tap the space bar to sneeze. Everyone hit by your spray turns green, then sneezes in turn, infecting others. How many are infected determines whether you go to the next level, which could be a train station, a factory floor or a nursery school.
