Almost instantly, on a memorial page on Newsday’s Web site for the boy, Sean Weisse, a message from an anti-vaccine advocacy group appeared: "We are so sorry to hear about Sean. My understanding, and forgive me if I’m wrong, is that this was a vaccine-related injury. If so, we would like to help you. Best regards, Stan Kurtz, Generation Rescue, Jim Carrey and Jenny McCarthy’s Organization." More Articles in Health » A version of this article appeared in print on October 16, 2009, on page A1 of the New York edition. Full Article at The New York Times