[entropy12]

I agree that sushi from a reputable source is probably low risk. So is rare steak, and various other delicacies. But accidents are known to happen.

[Jeff Chandler]

The bacterial contaminants on American beef are on the surface, so you could sear a steak and eat the center rare without worry. Once you grind the beef, the contaminants are brought into the interior, so ground beef should be cooked to 165F.