Japanese Encephalitis

About Japanese Encephalitis

Key Fact: Although some symptoms improve after the acute illness, 30% of survivors of severe cases will continue to have neurologic, cognitive, or psychiatric symptoms.

Vector: Bite from an infected mosquito.

Cases: 67,900 cases worldwide annually (estimated).

Symptoms: Fever, chills, headache, muscle pain, mental confusion, spasms in the neck and spine, muscle weakness.

Severe case: Long-term neurologic, psychosocial, intellectual and / or physical disabilities in about 30% of survivors of severe cases; death.

Precautions: Vaccination; Take preventative measures when mosquitoes are most active (from dusk until dawn); Use a recommended insect repellent containing either Picaridin (20%), DEET or PMD; Wear appropriate clothing (e.g. long sleeved shirt, long trousers)