Table 1 Operational definitions for acute encephalitis syndrome and Japanese encephalitis
SN | Variables | Operational definition |
|---|---|---|
1 | Acute encephalitis syndrome (AES) | A patient with fever (> 38 °C) and changes in mental status, abnormal movements, seizure, tremor, or spastic paralysis. |
2 | Japanese encephalitis (JE) | A case of AES with IgM against the Japanese encephalitis virus in the serum and/or cerebrospinal fluid. If IgM is detected just in the serum, the diagnosis is probable JE. If IgM is detected in the serum and cerebrospinal fluid, the diagnosis is confirmed JE. The JE Detect™ IgM Antibody Capture ELISA (MAC-ELISA) from InBios International, Inc., Seattle, WA, USA, was used for laboratory testing. |