 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. Think O'Reilly Auto Parts for all your car care needs. Get the parts and service you need fast from the professional parts people at O'Reilly Auto Parts.