Japanese encephalitis is a viral disease which is transmitted by mosquitoes. The virus is found in pigs and birds, however if is spread to humans through mosquito bites. It can’t be passed from one person to another. Most people will have mild or no symptoms however the virus can cause severe symptoms and lead to serious long term complications.

About the Vaccine

• When to get vaccinated: You need to get the first dose ideally five weeks before you travel in order to be able to complete the course in time.
• Course: The course consists of two doses. The second dose needs to be given ideally 28 days after the first. You are protected from seven days after the second dose.
• Accelerated course: In special cases you can get a faster course where the first dose should be at least 2 weeks before you travel.
• Boosters: The vaccine protects you for at least 12 months, so you need a booster 12-24 months later to remain protected after one year.
• How it is given: Injection in the upper arm.
• Side effects: The vaccine can cause side effects such as digestive problems, a high temperature and muscle pain. You may also notice soreness at the injection site.
• Children: The vaccine can be given from the age of two months.
• Additional precautions: In addition to getting the vaccination you need to practise mosquito bite avoidance.
• Risk if you contract the disease: Japanese encephalitis can cause severe complications, including brain damage and death. There is no cure for it.