Clinico-epidemiological features of Japanese encephalitis patients hospitalized in a tertiary care center

Abu Hasan Sarkar, Bishnu Ram Das


Background: Japanese encephalitis (JE) is of particular interest as it has a high morbidity and mortality. Neurological sequale is the most dreaded damage caused by JE. It is a preventable disease with specific interventions. The objective of the study was to study the demography, clinical profile and outcome of patients with Japanese Encephalitis admitted to the wards of Internal Medicine and Pediatrics at Jorhat Medical College Hospital.

Methods: Hospital based observational study for one year in Jorhat Medical College, Jorhat, Assam.

Results: The mean age for JE was 32.25±27 years for male, 27.47±22 years for female and 29.94±24 years overall. Assessment of clinical signs and symptoms showed that fever and change in mental status were present in 100% of JE cases followed by neck rigidity in 79.3% and headache in 68.9%. 44.8% of JE cases had history of seizure, 37.9% had vomiting, 34.5% had irritability, 13.8% were unconscious. The peak of JE incidence occurred in the month of July (77.6%). Complete recovery was seen in 39.2%, followed by death in 32.6% and recovery with neurological sequalae in 28.2% at the time of discharge.

Conclusions: Vigorous awareness activities should be carried out to sensitize people on prevention of JE. 


Japanese encephalitis, Clinical profile, Demography, Neurological sequale, Outcome

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