Enterovirus D-68 remains a concern in the Hudson Valley as local hospitals continue to monitor patients for the respiratory illness.

Westchester County health officials have confirmed at least 22 children have been treated for the illness and released from Maria Fareri Children's Hospital in Valhalla. The majority were from Westchester, but there were patients from other areas including Rockland, Orange, Dutchess and Kings counties.

The latest strain has been affecting children ages 6 to 16.

Enterovirus symptoms include coughing, sneezing and possible fever. Children with respiratory issues like asthma are at higher risk for contracting it. What makes the virus difficult to diagnose is that it is very similar to the common cold.