1998年の奈良県における小児急性神経疾患の発生状況

Abstract

A regional survey of the incidence of several acute infantile neurological disorders in 1998 was performed in Nara subsequently to 1997, concerning the incidence of adverse effects in preventive vaccinations. The total number (397) of cases reported in 1998 was very similar to that (394) in 1997, and the numbers of each neurological disease were also close to those in the previous year. The most frequent disorder in the survey was aseptic meningitis with 254 cases, while the second was epilepsy with 96 cases. In encephalitis/encephalopathy, 6 out of 12 cases were of complication of Influenza infection and the others were of unknown origin. Two patients died, as one case was complicated with influenza A virus infection and another was after the vaccination of Encephalitis japonica. In bacterial meningitis, 9 cases occurred with a ratio of 4.0 out of 100,000 children (under 15 years old), and Epilepsy incidence could be suspected in 144 of 100,000 children in Nara.