Related Experiment Videos
Japanese viral encephalitis
S V Tiroumourougane1, P Raghava, S Srinivasan
1Department of Paediatrics, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry, India.
Insights
Japanese encephalitis (JE) is a significant cause of acute encephalopathy in tropical children, spread by mosquitoes. While often asymptomatic, symptomatic cases require supportive care, with control relying on vector management and vaccination.
Area of Science:
- Virology and Tropical Medicine
- Pediatric Neurology
Background:
- Japanese encephalitis (JE) is a primary cause of acute encephalopathy in tropical regions.
- The JE virus is transmitted by Culex mosquitoes and targets key central nervous system areas.
- JE predominantly affects children under 15, often presenting asymptomatically.
Purpose of the Study:
- To outline the clinical presentation and diagnostic approaches for Japanese encephalitis.
- To discuss current management strategies and control measures for JE.
- To highlight the importance of supportive care and preventative interventions.
Main Methods:
- Aetiological diagnosis relies on detecting the virus or specific antibodies in cerebrospinal fluid or blood.
- Clinical presentation analysis of symptomatic pediatric cases.
- Review of established supportive management and control strategies.
Main Results:
- Symptomatic JE in children typically manifests as altered sensorium, seizures, and intracranial hypertension.
- No specific antiviral treatment exists for JE.
- Supportive management is crucial for improving patient outcomes.
Conclusions:
- Effective control of Japanese encephalitis necessitates integrated strategies including vector control and vaccination.
- Prompt diagnosis and supportive care are vital for managing symptomatic JE cases in children.
- Public health efforts should focus on prevention and early intervention to mitigate JE's impact.
Abstract:
One of the leading causes of acute encephalopathy in children in the tropics is Japanese encephalitis (JE). Transmitted by the culex mosquito, this neurotropic virus predominately affects the thalamus, anterior horns of the spinal cord, cerebral cortex, and cerebellum. It mainly affects children <15 years and is mostly asymptomatic. The occasional symptomatic child typically presents with a neurological syndrome characterised by altered sensorium, seizures, and features of intracranial hypertension. Aetiological diagnosis is based on virus isolation or demonstration of virus specific antigen or antibodies in the cerebrospinal fluid/blood. Though no antiviral drug is available against JE, effective supportive management can improve the outcome. Control of JE involves efficient vector control and appropriate use of vaccines.