A virus first found in chickens is implicated in human obesity

As someone who's struggled with his weight all his life (and who comes from a family with similar problems), I've long been fascinated with the science of weight and obesity; many years ago I listened to a Quirks & Quarks segment detailing the theory that the modern obesity epidemic was the result of a bird flu that affected our gut flora and changed our metabolisms to make us hungrier and more susceptible to convert the food we ate to fat. (more")