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Altrincham Travel Clinic

Travel vaccine

Japanese Encephalitis Vaccine

Japanese encephalitis is a viral infection transmitted by mosquitoes, leading to inflammation of the brain and prevalent in parts of Asia and the Western Pacific.

Overview

Japanese encephalitis (JE) is caused by a flavivirus transmitted through the bite of infected Culex mosquitoes, commonly found in rural areas where rice cultivation and pig farming are prevalent. While most infections are asymptomatic, severe cases can result in encephalitis, leading to high mortality rates and potential long-term neurological complications.

Risk areas

JE is endemic in 24 countries across South-East Asia and the Western Pacific regions, including nations such as China, India, Japan, Thailand, Vietnam, and the Philippines. The virus thrives in rural settings with abundant mosquito vectors and suitable breeding habitats.

Risk for travellers

Travelers spending extended periods in endemic areas, particularly in rural regions during the transmission season, are at increased risk. Activities such as camping, hiking, or staying near rice fields and pig farms can elevate the risk of exposure. Short-term travelers to urban areas generally face a lower risk.

Signs & symptoms

  • Fever
  • Headache
  • Nausea
  • Vomiting
  • Neck stiffness
  • Confusion
  • Seizures
  • Paralysis

Vaccine details

The Japanese Encephalitis vaccine can be administered on two schedules- either a course of 2 injections given 28 days apart or as an accelerated course of 2 injections given 7 days apart.

Book your appointment for Japanese Encephalitis Vaccine right now.

Bite avoidance

Spread by mosquito bites

Japanese Encephalitis Vaccine protects against a mosquito-borne disease — but the vaccine works best alongside good bite avoidance. See how 40–50% DEET, Parakito bands and simple habits keep mosquitoes off you.

Mosquito bite protection