Some children in north and south Alabama are showing signs of a powerful respiratory illness that's making its way across the country. That information is coming from the Alabama Department of Public Health. Health officials confirm that they have sent six specimens to the Centers for Disease Control and Prevention to be tested for enterovirus D68. State health officials say they've alerted all primary health physicians to begin testing children showing symptoms of a respiratory illness. The virus can cause mild cold-like symptoms including runny noses, coughing and wheezing. It's been reported in hundreds of children in more than 10 states, and CDC officials are calling the cases "unusually severe."