1921
Volume 58, Issue 3
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645
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Abstract

The etiologic spectrum of acute encephalitis syndrome (AES) has not been well defined in Vietnam. Cohort and case-control studies were performed on all adult and pediatric AES patients admitted to the Neurology Service of Bach Mai Hospital between June 5 and August 3, 1995. Among pediatric AES patients, 31 (67%) of 46 had acute Japanese encephalitis (JE), compared with only two (6%) of 33 adult AES patients (P < 0.0001). For confirmed JE cases, serum specimens obtained 15-21 days after symptom onset had the highest mean anti-JE IgM signal-to-noise (P/N) ratios (8.08 + 1.09 SE). A serosurvey of adult household members did not reveal any cases of recent subclinical JE infection, although 26% had evidence of past JE infection. The use of bed netting was nearly universal but did not appear to reduce the risk of AES or JE. Given the high incidence of JE, particularly among children, Vietnam seems well suited for the development of a targeted JE vaccination strategy.

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/content/journals/10.4269/ajtmh.1998.58.324
1998-03-01
2017-09-21
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