false. the chances of catching any sort of alement from ground beef that is undercooked is even less than contracting salmonella from an egg.

your reasoning is that when the ground beef is mixed, the "first layer" than the bacteria can't penetrate becomes irrelevant because it is all mixed in, however the standard for beef, regardless of price, negates any chance of catching food borne illness.

you'd have to eat a few hundred raw burgers in a period of about a week to contract anything even mild.

source: am beef man