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. 2000 Nov;39(11):894-900.
doi: 10.2169/internalmedicine.39.894.

Nationwide survey of the annual prevalence of viral and other neurological infections in Japanese inpatients

S Kamei  1 , T Takasu
Affiliations
Free article

Nationwide survey of the annual prevalence of viral and other neurological infections in Japanese inpatients

S Kamei et al. Intern Med. 2000 Nov.
Free article

Abstract

Objective: To estimate the annual prevalence of viral and other neurological infections at large hospitals in Japan during the period from 1989 to 1991.

Methods: A nationwide questionnaire survey on the numbers of inpatients with viral and other neurological infections was sent for completion to the chiefs of Departments of Internal Medicine, Neurology and Pediatrics at all hospitals with more than 200 beds.

Results: The average annual number of inpatients (and the number per 10(6) population) with encephalitis in large hospitals was estimated to be 2,200+/-400 (17.7+/-3.2), while it was 32,000+/-16,000 (258+/-129) for meningitis, and 650+/-50 (5.2+/-0.4) for myelitis. Among the inpatients with encephalitis, meningitis, and myelitis, an unknown etiology was the most common (51.2% in encephalitis, 73.2% in meningitis, and 36.3% in myelitis), followed by a viral etiology for all three diseases.

Conclusion: The first estimate was made of the annual prevalence of viral and other neurological infections and their etiology in Japan.

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