U.S. Sen. Charles Schumer is calling for better tracking and information about an unusual respiratory illness in children that has been found in New York City and Long Island.

The Centers for Disease Control and Prevention reports at least 160 lab-confirmed cases of enterovirus D68 from 22 states.

Schumer says New York City has many asthmatic children who are especially vulnerable.

He’s urging the CDC to provide help and information to communities, schools and parents to ensure the virus is quickly recognized, diagnosed and treated.

The virus can cause mild to severe illness, with the worst cases needing life support for breathing difficulties.

He’s also urging the CDC to encourage health professionals to report cases to track the spread.

Symptoms include fever, runny nose, sneezing, coughing, aches and wheezing.

(AP)