Who is at risk?
In general, infants, children, and teenagers are most likely to get infected with Enteroviruses and become ill. That's because they do not yet have immunity (protection) from previous exposures to these viruses. Adults can get infected with Enteroviruses, but they are more likely to have no symptoms or mild symptoms.
Children with asthma may have a higher risk for severe respiratory illness caused by Enterovirus D68 (EV-D68) infection.