Japanese Encephalitis

Japanese Encephalitis Latest News

Researchers have found that waning immunity against infections of the Japanese encephalitis virus (JEV) can predispose individuals to more severe dengue.  

About Japanese Encephalitis

• It is a viral zoonotic disease caused by the Japanese Encephalitis(B) virus.
• Japanese encephalitis virus (JEV) is a flavivirus related to dengue, yellow fever and West Nile viruses.

‹ ›

Transmission of Japanese Encephalitis

• The virus is transmitted to humans by the infected Culex mosquito of the Vishnui group.
• There is no human-to-human transmission of the virus.
• It is most common in rural areas of Asia, particularly during monsoon seasons when mosquito breeding is prevalent.
• Both Japanese encephalitis virus and dengue virus belong to the same genus, Orthoflavivirus.

Symptoms of Japanese Encephalitis

• It affects the brain, leading to symptoms like fever, headache, vomiting, and neurological signs such as confusion, seizures, and paralysis.
• While many infected individuals may show mild or no symptoms, severe cases can lead to permanent brain damage or death.

Prevention and Treatment for Japanese Encephalitis

• Vaccination is the most effective prevention strategy, particularly in endemic regions.
• There is no antiviral treatment for patients with JE. Treatment is supportive and includes stabilization and relief of  symptoms.  
• According to the Government of India’s guidelines, two doses of the vaccine have been a part of the Universal Immunisation Programme since 2013.

Source: TH