The H7N9 flu virus has killed more than 600 in China. Late-stage disease symptoms include delerium, mania, and violent outbursts referred to as intermittent explosive disorder. youtube.com/watch?v=Mgsip5aCvBA
>Intermittent explosive disorder (sometimes abbreviated as IED) is a behavioral disorder characterized by explosive outbursts of anger and violence, often to the point of rage, that are disproportionate to the situation at hand (e.g., impulsive screaming triggered by relatively inconsequential events).