We studied the potential benefits of introducing a rapid enterovirus molecular test in children with enterovirus meningitis. The 2 groups of pediatric patients were comparable with respect to clinical and laboratory data, but differed in availability of enterovirus test results. In the control group, the results were available within 3 to 7 days, whereas in the study group, rapid enterovirus molecular test results were available within 3 to 24 hours. The median duration of hospitalization and the duration of antibiotics were significantly reduced to, respectively, 2 days and 1 day in the study group when compared with the control group (P < 0.001). Mean costs per patient calculation showed an average reduction of more than US $1450 (P < 0.001).