NEW YORK - Mayor Bill de Blasio is urging parents to be on the lookout for symptoms in young kids as the Centers for Disease Control confirms a link between coronavirus and an inflammatory illness that affects children.

The CDC is now calling the illness Multi-System Inflammatory Syndrome in Children, or MIS-C.

The state says there are more than 120 cases across New York.

The Health Department is reviewing cases of the illness in the city under the CDC's new definition and will have an updated number of cases later in the week.

"Everything else we do to fight the coronavirus, we need to do to fight MIS-C. So that means the hygiene, the washing hands, the hand sanitizer, the coughing into your elbow when you cough or sneeze. All the basics, using the face covering, staying at home to the maximum extent possible, social distancing. All of this helps make sure our children are not exposed to this disease," de Blasio said.

The mayor says there are new symptoms that parents should be looking for.

In addition to fever, they include irritability or sluggishness, abdominal pain, diarrhea or vomiting, rash or conjunctivitis (which are red or pink eyes), an enlarged lymph node on one side of the neck, red, cracked lips, and swollen hands or feet.

Parents are urged to call their doctor immediately if their children show any of these symptoms.

State health officials say they will evaluate the current health guidelines and will decide by the end of June if camps will open.

Meantime, antibody testing began Monday for more than 140,000 health care workers and first responders in the city.

The free tests are being conducted at hospitals, firehouses, police stations and corrections facilities.

Two new community testing sites are now open in Washington Heights and Midwood, Brooklyn.

At his daily briefing, the mayor emphasized that all testing is a step towards learning more about the coronavirus.

"Every individual will get the results, that's good, but on top of it, it will also help us understand what's happening with the disease more broadly. It's part of a bigger study to help us learn how to fight this disease better," De Blasio said.

First responders can sign up for their tests by going to or by texting the word TESTNYC to 78378.