EARLY WARNING SYSTEM

摘要

Candace Weiss didn't know she had a family history of birth defects until she got pregnant with her daughter. That's when she learned that her grandmother, at the age of 42, had given birth to a baby with Down syndrome. "That child died young," she says. "But back in that time, they sent them away. She wasn't even raised in the family." Weiss' own child was born perfectly healthy. Not long after, she and her husband started trying for a second baby. But she had a miscarriage. And then another. The second miscarriage was the result of triploid syndrome-the fetus had three of every chromosome instead of the normal two.