Document Detail

Epidemics of aseptic meningitis due to echovirus 30 in Japan. A report of the National Epidemiological Surveillance of Infectious Agents in Japan.
MedLine Citation:
PMID:  7715095     Owner:  NLM     Status:  MEDLINE    
Two rages of epidemic of aseptic meningitis (AM) due to echovirus 30 (E30) in Japan were analyzed with respect to two sources of information, AM incidence and E30 isolation, both gathered through the National Epidemiological Surveillance of Infectious Diseases. The first E30 epidemic spread throughout Japan in 1983 and ceased within the year. The second epidemic, starting in 1989, continued for the three successive years, and in the last year, 1991, the total E30 reports numbered 4,061, the largest number of a single virus type ever reported. Although the epidemic showed temporal and geographical shift and lasted for one or two years in some areas, most laboratories reported the largest number of E30 isolation in 1991. Among E30-yielding cases with clinical information during 1982-1992, the associating frequency with AM was as high as 82.5%. Other central nervous system involvements such as encephalitis, myelitis, encephalomyelitis and/or paralysis were reported in 36 E30-yielding cases and their monthly and age distributions were different from those of AM cases. The proportion of such disease among E30-yielding cases (0.60%) was close to that of other enteroviruses (0.56%). During the epidemics, E30 was isolated more frequently from cerebrospinal fluid than was E4 or E9 which prevailed coincidentally. E30 was most frequently isolated from cases of 4-7 years of age, sharing the common characteristic pattern of age distribution with other enteroviral meningitis. E30-yielding cases, however, involved a large number of older age groups than those of other enterovirus infections, and this tendency was the most pronounced in the first epidemic year, 1983. The contribution of these E30 epidemics on the yearly trend of clinically reported AM incidence and on the shift of its age distribution was also analyzed.
K Yamashita; K Miyamura; S Yamadera; N Kato; M Akatsuka; M Hashido; S Inouye; S Yamazaki
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Japanese journal of medical science & biology     Volume:  47     ISSN:  0021-5112     ISO Abbreviation:  Jpn. J. Med. Sci. Biol.     Publication Date:  1994 Aug 
Date Detail:
Created Date:  1995-05-16     Completed Date:  1995-05-16     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0243706     Medline TA:  Jpn J Med Sci Biol     Country:  JAPAN    
Other Details:
Languages:  eng     Pagination:  221-39     Citation Subset:  IM    
Department of Epidemiology, National Institute of Health, Tokyo.
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MeSH Terms
Age Factors
Aged, 80 and over
Child, Preschool
Disease Outbreaks*
Echovirus Infections / epidemiology*,  virology
Enterovirus B, Human*
Infant, Newborn
Japan / epidemiology
Meningitis, Aseptic / diagnosis,  epidemiology*,  virology
Middle Aged

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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