Many people who get infected with non-polio enteroviruses do not have symptoms but can still spread the virus to other people. This makes it is difficult to prevent them from spreading. The best way to help protect yourself and others from non-polio enterovirus infections is to
wash your hands often with soap and water for 20 seconds, especially after using the toilet or changing diapers
avoid close contact, such as touching and shaking hands, with people who are sick
clean and disinfecting frequently touched surfaces
See this infographic on prevention steps: Keep Your Child from Getting and Spreading Enterovirus D68.
There is no vaccine to protect you from non-polio enterovirus infection.
Infants, children, and teenagers are more likely than adults to get infected and become sick because they do not yet have immunity (protection) from previous exposures to the viruses. Adults can get infected too, but they are less likely to have symptoms, or their symptoms may be milder. Symptoms of mild illness may include:
runny nose, sneezing, cough
body and muscle aches
To learn more visits: Symptoms of Non-Polio Enterovirus Infection | CDC