The Centers for Disease Control and Prevention (CDC) identified a fast-moving virus, hitting the Midwest, as EV-D86. It was first discovered in the 1960s in California and has remained somewhat dormant until recently. More than 80 cases of EV-D86 have been reported this month. It is one of about 100 types of Enteroviruses, which are typically prevalent throughout the summer and early fall. However, most types are similar to the common cold.