 was hurt, the plane landed safely in Denver. A new study bolsters findings the gut microbiome may be key to diagnosing autism. Researchers at the Chinese University of Hong Kong studied 1,600 stool samples from children ages 1 to 13 and found distinct biological markers, including traces of gut bacteria, fungi, and viruses. They say it could lead to earlier autism diagnoses. S&P futures up 13. This is CBS News.