JE is a type of infectious encephalitis caused by Japanese Encephalitis virus (JEV). Find out...
Japanese encephalitis
Also called: Japanese B encephalitis and flavivirus
An infection found in Asia and the west Pacific that can cause brain swelling.
- Preventable by vaccine
- Treatable by a medical professional
- Requires a medical diagnosis
- Lab tests or imaging often required
- Short-term: resolves within days to weeks
- Critical: needs emergency care
Japanese encephalitis is a virus spread by the bite of infected mosquitoes. It's more common in rural and agricultural areas.
Extremely rare: Fewer than 1,000 US cases per year
Consult a doctor for medical advice
Sources: Mayo Clinic and others. Learn more
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Japanese encephalitis virus is spread to people through the bite of an infected mosquito. Most people who get infected experience mild or no symptoms.
Japanese encephalitis is a rare but serious infection you can get from mosquito bites in some parts of the world. If you're travelling to an area where ...