| a polymerase chain reaction-based epidemiologic investigation of the incidence of nonpolio enteroviral infections in febrile and afebrile infants 90 days and younger. | enteroviruses are important pathogens in infants, but their true contribution to febrile illness in infants </=90 days old is unknown. the purpose of this study was to use the polymerase chain reaction (pcr) for diagnosis of enteroviral (ev) infection in febrile and afebrile infants </=90 days of age to improve the understanding of the epidemiology of ev infection in this population. | 1999 | 10049983 |