You have to be positive on the ELISA before you do the Western Blot. That is the take home point. If your doctor is giving you the Western Blot without first making sure the ELISA is positive, he is an idiot. Hey guise I am getting some fair game IRL, probably because of this thing in Boston but I dont' know for sure. Please don't fire me, Anonymous, cuz then I will have no one at all.