When the immune system attacks a little child because the person it inhabits has no life and a small friends list. The infected are generally small children who play Halo 3 and insist on talking into the mic which causes an all around deafness of whoever is in the game. This causes many of the other kids with the disease to yell their high pitch battle cry and forcing many grown adults to cry as their ears bleed.
Symptoms include: being a little kid, having no friends, having a voice that pierces the ear drums, being gay.
Possible cures: dropping a pair, make a fiend, get a girlfriend.
(Side effects: becoming a man, getting laid)