evidence: The following cases were reported in the Vaccine Adverse Event Reporting System (VAERS) between November 1990 and July 1992: a 50-year-old male who developed syncope, visual disturbance, and hypoglycemia 1 day after receiving tetanus toxoid; a 14-year-old male who developed encephalitis and transverse myelitis 2.5 months following Td administration; and a 17-year-old male who developed lymphocytic meningoencephalitis 10 days following receipt of Td and measles-mumps-rubella vaccine (MMR).