Dengue vaccine in Malaysia: what Qdenga can and can’t do

Dengue in Malaysia in 2026

Malaysia recorded 78,225 dengue cases and 68 deaths between 4 January and 25 October 2026, according to the national iDengue portal. Selangor accounts for the largest share, followed by the Federal Territories and Johor. By early September, cases were 66% higher than in the same period of 2025, and deaths had almost doubled.

The Ministry of Health has linked the rise to a shift in the dominant dengue strain, from DENV-2 to DENV-3. That matters when thinking about the vaccine, as explained below.

What is the dengue vaccine?

Qdenga (also known as TAK-003) is a live, weakened vaccine designed to protect against all four types of dengue virus (DENV-1 to DENV-4). It is given as an injection under the skin, in two doses three months apart. A booster dose is not currently part of the approved schedule.

Malaysia’s Drug Control Authority gave it conditional registration in February 2024. That means the company must keep submitting safety and effectiveness data. A renewal of the conditional registration has been reported from February 2026.

The vaccine is not in the National Immunisation Programme. In August 2026, the Health Minister said the Ministry was still studying whether to include it, including a cost-benefit analysis. For now, it is only offered privately.

Who can have it, and who should not

In Malaysia, it is registered for people aged 4 and above, whether or not they have had dengue before. There is little data for people over 60.

The World Health Organization recommends it mainly for children aged 6 to 16 in areas with high dengue transmission, and says people up to 60 with conditions such as diabetes or high blood pressure may also be offered it.

You should not have it if you:

• are pregnant or breastfeeding (and you should avoid becoming pregnant for at least a month afterwards)
• have a weakened immune system, for example from chemotherapy, high-dose steroids or HIV with low immunity
• had a severe allergic reaction to a previous dose or to any ingredient

If you have a high fever on the day, the vaccination should be delayed.

How well does it work?

The main trial followed about 20,000 children aged 4 to 16 in Asia and Latin America. Four and a half years after the second dose, the vaccine had reduced:

Protection was highest in the first year and a half, and lowest in children aged 4 to 5.

The DENV-3 caveat

Protection was not the same against every dengue type. In people who had never had dengue, the trial found good protection against DENV-2 and some against DENV-1, but no protection against DENV-3, and too few DENV-4 cases to show any benefit.

The few cases of severe dengue in vaccinated people who had never had dengue were all DENV-3. The difference was not statistically significant, but WHO says a higher risk “cannot be conclusively ruled out”. In people who had dengue before, the vaccine did protect against DENV-3, cutting hospital admissions by about three-quarters.

Side effects

Most side effects are mild to moderate, start within two days and last one to three days. They are less common after the second dose. In trials:

• Pain at the injection site: 50%
• Headache: 35%
• Muscle aches: 31%
• Redness at the injection site: 27%
• Feeling unwell or tired: 20–24%
• Fever: 11%

Severe allergic reactions (anaphylaxis) are rare, so you will be asked to wait at the clinic for a short time afterwards. Because it is a live vaccine, some people briefly have the vaccine virus in their blood, and a dengue test taken soon after vaccination may be positive. Tell the doctor you were recently vaccinated if you need a dengue test.

Cost and where to get it

Because the vaccine is only available privately, each clinic sets its own price. News reports from 2024 to 2026 put the cost of both doses at roughly RM400 to RM500 in total. Ask for the full price, including the consultation, before your first dose.

Vaccination costs can be claimed under the medical expenses tax relief for vaccinations. Keep your receipt.

Keep preventing bites, even if vaccinated

No dengue vaccine gives complete protection. Keep doing the basics:

• Clear standing water around your home every week, including plant saucers, roof gutters and containers.
• Use mosquito repellent and cover up during the early morning and late afternoon.
• Know the early symptoms and warning signs of dengue. Severe stomach pain, persistent vomiting, bleeding gums or drowsiness need urgent care.

Where to ask about the dengue vaccine

Many private GP clinics can discuss whether the dengue vaccine is suitable for you and give both doses. Call ahead to check they have it in stock. Our directory lists GP clinics across Kuala Lumpur, Selangor and other states, with opening hours and directions.

Browse the clinic directory

Frequently asked questions