Premature baby named after curling rock island defies odds

In this 2018 photo provided by U.S. Olympic curler Joe Polo, his 9-month-old daughter Ailsa Polo poses next to a teddy bear in the Polos’ home in Duluth, Minn. Polo named his daughter Ailsa after the Scottish island where the granite for curling rocks is mined. (Joe Polo via AP)

In this Saturday, Feb. 17, 2018 photo curler Joe Polo, of the United States, launches the stone during practice at the 2018 Winter Olympics in Gangneung, South Korea. Joe and Kristin Polo, both curlers, named their daughter Ailsa, after the Scottish island where the granite that makes curling rocks is mined. (AP Photo/Aaron Favila)

GANGNEUNG, South Korea — Long before her frightening birth, before the awful moments when everyone wondered if she would survive, before anyone knew how tough she could be, Ailsa Polo’s destiny was linked to an isle of granite.