The Delaware Division of Public Health has confirmed that a child has tested positive for Enterovirus.
There have been reports of 15 children with the respiratory viral illness.
State officials say that the number of illnesses is slightly above normal but not high enough to raise concerns.
The children range from one to 17 years of age.
Officials recommend washing your hands with soap and water frequently for 20 seconds as well as covering coughs and sneezes to avoid spreading the virus.