Mystery paralysis in children is perplexing parents and researchersA mysterious  unexplained, polio-like paralysis has struck more than 100 kids and continues to stump researchers and disrupt lives across the country. Experts are trying to figure out why some children become paralyzed while their brothers and sisters, who also are exposed to the virus, escape largely unscathed? Researchers are gathering DNA from patients around country, are among the experts trying to find answers for families affected by the paralysis. FULL REPORT