Darryl Webb/East Valley Tribune, AP<br>In this Aug. 27, 2009 photo, 1-year-old Aaron Hernandez II gets immunization shots Chandler CARE Center at San Marcos Elementary School in Chandler. Arizona children, ages 19 to 35 months, are "severely lagging behind" the federal recommendation to have 90 percent of them up to date on their immunizations, according to a report from the Arizona chapter of March of Dimes.