The majority of those infected with the Japanese Encephalitis virus exhibit no symptoms. When symptoms do occur, they can be severe, necessitating hospital care, and may lead to permanent brain damage or death.

Based on the World Health Organization (WHO),

• Symptomatic cases have a fatality rate of up to 30% and result in neurological impairments in 30 to 50% of cases.
• About 1 in 250 infected individuals will develop severe illness, with symptoms such as high fever, headache, neck stiffness, confusion and seizures, potentially leading to a coma.

Japanese Encephalitis occurs mainly in Asia and the Western Pacific, with 24 countries in the WHO South-East Asia and Western Pacific Regions at risk of transmission. It is found mostly in rural and periurban areas, and in rice-growing regions transmission often rises during the rainy season and before the harvest.

Based on the Society of Infectious Disease (Singapore), the vaccine is administered in a single dose for adults. Children aged 9 months to 17 years need 1 booster dose for long-term protection, preferably 12 months after the first dose and no later than 24 months. Children who started with an inactivated JE vaccine can receive Imojev as their booster.

The vaccine should be given at least 30 days before travel.

The vaccine is recommended for:

• Residents: Individuals relocating to live in JE-endemic regions.
• Long-term Travellers: Those visiting JE-endemic areas for a month or more, including frequent visitors.
• Short-term Travellers with Increased Risk: This includes travellers staying for less than a month who may have a higher risk of JE infection due to:
  • The duration of their travel
  • The season of their visit
  • Their travel locations
  • Planned activities
  • Types of accommodations
• Travellers with Uncertain Plans: Those going to endemic areas without a clear itinerary, including unknown travel durations, destinations, or activities, should consider getting vaccinated.

• Individuals with Previous Allergic Reactions: Those who have experienced a severe allergic reaction to any component of the vaccine, or to a previous dose of Imojev or any other Japanese Encephalitis (JE) vaccine, such as IXIARO.
• Individuals with a Weakened Immune System: Those with a congenital or acquired immune deficiency, or on immunosuppressive treatment such as chemotherapy or high-dose systemic corticosteroids for 14 days or more.
• Individuals with HIV: Those with symptomatic HIV infection, or asymptomatic HIV infection with impaired immune function.
• Pregnant and Breastfeeding Women: Imojev is a live vaccine and must not be given during pregnancy or breastfeeding.

Vaccination should be postponed if you have a fever or an acute illness.

Like all medicines, Imojev can cause side effects, although not everybody gets them. These include (but are not limited to):

• Pain and Tenderness
• Mild Headaches
• Muscle Aches
• Tiredness or Feeling Generally Unwell

They are typically mild and should disappear within a few days. However, if they persist or worsen, please seek medical attention.

If you see signs of a severe allergic reaction (hives or widespread itchy rashes, swelling of the face, eyes or throat, difficulty breathing, a fast heartbeat, dizziness, or weakness), please seek immediate medical attention.

Disclaimer: Note that this is not an exhaustive list of all possible side effects. The information above is also not meant to be substituted as medical advice. Please talk to a doctor if you have a medical concern.

Vaccinations offer significant individual benefits by boosting the immune system's ability to fight off specific infectious diseases. They reduce the risk of contracting serious illnesses, leading to fewer medical visits and a lower chance of hospitalization.

By staying up-to-date with vaccinations, individuals can also enjoy a greater sense of well-being and freedom to engage in various social activities, knowing they are protected against contagious diseases.

At ATA Medical, we offer a wide range of vaccinations to meet your various health needs, from travel to seasonal immunity, ensuring you are well-protected. Your vaccination will also be updated to the National Immunisation Registry (NIR) where relevant, this allows you to keep a record of the vaccinations.

Your vaccination will also be updated to the National Immunisation Registry (NIR) where relevant, this allows you to keep a record of your vaccinations.

Vaccination	Price*
Japanese Encephalitis Vaccine / Imojev	$325 / dose

*Prices are NETT and inclusive of GST.
^Prices last updated on Jan 28, 2026. While every effort is made to keep pricing information up to date, please contact our team to confirm the latest rates.

For group vaccinations at your home or other locations, please reach out to our friendly staff to find out more.

ATA Medical is conveniently located at four different locations:

• Tanjong Pagar Medical Clinic (Closest MRT: Tanjong Pagar EW15)
• Orchard Clinic (Closest MRT: Orchard Boulevard TE13)
• Jurong Clinic (Closest MRT: Jurong East NS1/EW24)
• Novena Clinic (Closest MRT: Novena NS20)

Our vaccination clinics are located across Singapore — at Tanjong Pagar (CBD), Orchard, Jurong East, and Novena. Same-day appointments for vaccinations are available.

• Tanjong Pagar Medical Clinic (Closest MRT: Tanjong Pagar EW15)
• Orchard Clinic (Closest MRT: Orchard Boulevard TE13)
• Jurong Clinic (Closest MRT: Jurong East NS1/EW24)
• Novena Clinic (Closest MRT: Novena NS20)

• Tanjong Pagar Clinic
• Orchard Clinic
• Jurong Clinic
• Novena Clinic