India’s First Dengue Vaccine Drive: What Qdenga Is, Who Can Get It, How Tamil Nadu’s Kadayanallur Pilot Works and Whether You Can Get It Privately

India has started its first dengue vaccination drive using Qdenga, a vaccine approved for people aged 4 to 60 years. The pilot began in Kadayanallur in Tamil Nadu’s Tenkasi district, a location selected because of its high dengue burden.

But there’s one important detail: approval does not mean you can walk into any hospital and get the vaccine today. The private-market launch is expected in the first half of 2027, subject to the remaining regulatory processes. (Source: The New Indian Express)

What Is Qdenga?

Qdenga is a live-attenuated vaccine developed by Japanese pharmaceutical company Takeda. It is designed to protect against all four dengue virus types: DENV-1, DENV-2, DENV-3 and DENV-4.

India’s drug regulator, CDSCO, approved it in July 2026 for people aged 4–60 years.

The recommended course consists of:

  • Dose 1: At the first vaccination visit.
  • Dose 2: Three months later.
  • Dose size: 0.5 ml per dose.

Unlike some other dengue vaccines, Qdenga does not require proof of a previous dengue infection before vaccination under its approved indication. A doctor should still assess whether it is suitable for the individual. (Source: Ministry of Health and Family Welfare, PIB)

How Does the Kadayanallur Pilot Work?

Tamil Nadu launched the pilot in Kadayanallur, in Tenkasi district, on 17 October 2026.

The state is using the town as an initial location for the vaccination drive. Health authorities will assess the programme before deciding whether it should be expanded to other areas.

Here’s what residents should know:

  • The pilot is a local public-health initiative, not a nationwide vaccination rollout.
  • Being within the approved age range does not automatically guarantee access through the pilot.
  • Residents should check with their local government health department or public-health facility for eligibility, availability and vaccination arrangements.
  • The second dose must be planned for three months after the first.

The state health minister has described the vaccine as offering around 80% protection, but protection varies by outcome and study. Vaccination does not guarantee that a person will never get dengue. (Source: The New Indian Express)

Who Can Get the Vaccine?

The Indian approval covers people aged 4 to 60 years, regardless of whether they have previously had dengue.

However, age alone is not enough to decide whether vaccination is appropriate. Since Qdenga is a live-attenuated vaccine, people should consult a qualified healthcare professional about their medical history, immune status, pregnancy or other conditions before receiving it.

The approved age range also does not mean the vaccine is currently available to everyone through government facilities.

Can You Get Qdenga Privately Right Now?

Not through routine private-market sales yet, based on the latest announced timeline.

Takeda and Dr. Reddy’s Laboratories announced a distribution partnership on 18 September 2026. Dr. Reddy’s will promote and distribute Qdenga in India’s private market for children and adults.

The expected launch is in the first half of 2027, subject to completion of the required regulatory and quality-release processes.

The price has not yet been announced. So, if a clinic claims it can provide Qdenga immediately, verify the vaccine’s authenticity, regulatory status and supply directly with the provider before paying.

The vaccine’s approval is also separate from its inclusion in the government’s Universal Immunisation Programme. Nationwide free availability has not been announced. (Source: Dr. Reddy’s official filing)

What Side Effects Should You Know About?

Reported common reactions include pain or redness at the injection site, headache, muscle pain and fever. Ask your doctor about the precautions that apply to you and what symptoms require medical attention.

And remember: Qdenga is an additional prevention measure, not a replacement for mosquito control. Remove stagnant water, use mosquito repellents and screens, and seek medical care if dengue is suspected.

Frequently Asked Questions

Can someone who has already had dengue take Qdenga?

The Indian approval allows vaccination regardless of previous dengue infection, subject to the vaccine’s approved conditions and a healthcare professional’s advice.

Can children receive it?

The approved age range starts at 4 years. A clinician should assess suitability before vaccination.

When will it be available in private hospitals?

The announced target is the first half of 2027, subject to the remaining regulatory and quality processes.

Will the vaccine be free?

The Kadayanallur pilot is a public-health initiative, but nationwide free access has not been announced. Private-market pricing is also not yet confirmed.

Information checked on 27 October 2026. Private availability, pricing and wider public rollout remain subject to official updates.