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ID 46879
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AN EPIDEMIOLOGICAL OBSERVATION OF JAPANESE B ENCEPHALITIS PREVAILED OVER OKAYAMA PREFECTURE DURING THE PAST 8 YEAR FROM 1946 TILL 1953
Author
Uchida, Yutaka
Abstract
From the epidemiological point of view, an observation was made on the features of Japanese B encephalitis, which occurred and prevailed in Okayama Prefecture, where the outbreak of this disease has been reported all these 8 years from 1946 till 1953. Almost every year, the number of patients in this prefecture exceeded the average one of the whole country. In addition, it seemed to indicate serious outbreak with the period of about 10 years. Every outbreak has taken place between mid-August and early September. Both children and aged people were susceptible to this disease, the mortality being low in children and somewhat high in the aged patients. Male patients were more numerous than female patients. It is interesting to note that, when the local origin of the patients was investigated, it appeared that many children patients were of the southern parts of the prefecture and many aged patients of the northern parts, where the mortality caused by the disease is somewhat higher. Further investigation in this respect will be done in the future. The peak of this disease was usually seen to be reached in the south about two weeks earlier than in the north. Thus it may well be said that the features of the prevalence of this disease have an intimate relation with the climatic condition. The differential diagnosis of this disease was found to be difficult when accompanied with tuberculolus meningitis, ekiri, dysentery and some other disease with encephalitic or meningitic symptom.
Note
日本腦炎特輯號 II (岡山大学脳炎委員會)
Published Date
1955-02-28
Publication Title
岡山医学会雑誌
Volume
volume66
Issue
issue10 suppl
Publisher
岡山医学会
Start Page
25
End Page
48
ISSN
0030-1558
NCID
AN00032489
Content Type
Journal Article
Related Url
http://www.okayama-u.ac.jp/user/oma/
language
日本語
Copyright Holders
Copyright© 岡山医学会
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publisher
Refereed
True
Eprints Journal Name
joma