Adults often remember the wonders of childhood—summers off, a high tolerance for junk food, and a glorious lack of responsibility. But one summertime threat that targets kids is making a comeback.

Kids are prone to contracting highly unpleasant viral infections like mononucleosis and chicken pox—and now, according to CBS News, outbreaks of hand, foot, and mouth disease are on the rise in several states. Indiana, South Carolina, New York, and Tennessee are among the areas with a reported uptick in cases.

Caused by the coxsackievirus, hand, foot, and mouth disease is characterized by fever, a sore throat, and a runny nose. After that initial burst of symptoms, patients develop a blistery rash on their extremities and inside their mouth. It's easily communicable through coughing, kissing, or shared food and drinks. Symptoms usually last seven to 10 days. Hydration, pain management, and rest are recommended until the virus runs its course.

Although less common, adults can contract the virus as well. New York Mets pitcher Noah Syndergaard was recently confirmed to have hand, foot, and mouth disease, possibly brought on from his participation at a youth baseball camp in July. New York Yankees pitcher J.A. Happ has it, too.

Doctors believe the infection flares up from time to time, particularly in late summer and early fall. The best prevention is washing your hands.

[h/t CBS News]