"Basically, the scientists have discovered a protein (EAT-2) that makes a very important part of your immune system lazy. Imagine the NK/T-cell is like a cop, the EAT-2 protein is a doughnut, and herpes is a career criminal on the loose. A cop who eats too many doughnuts isn't going to be very good at chasing down a sneaky criminal... But if you can keep the cop from eating the doughnuts -- by destroying the Krispy Kreme factory or just hijacking the doughnut truck -- the cop is a lot more likely to be in the kind of shape that will allow him to track down and arrest the criminal."