Sudden infant death syndrome, or SIDS, “will be a thing of the past,” according to Carmel Harrington, a sleep researcher at the Children’s Hospital at Westmead, in Australia. A press release describes her new study, out this month, as a “game-changing” effort and a “world-first breakthrough” that could prevent future deaths from the tragic illness. Celebrations quickly spread on social media: “THEY FOUND THE CAUSE OF SIDS. Excuse me while I cry for all the parents,” one viral tweet declared. “Closest thing to a miracle in a long time,” said another. The press soon picked up the story. On Friday, a segment on Good Morning America touted Harrington’s “very, very important study” of SIDS, while a story in the New York Post promised that her data would “bring closure to countless parents who have endured the nightmare of losing a child.”