Do You Think There’s Just One Dengue?

Do You Think There’s Just One Dengue?

There Are Four Types Waiting

Most people think dengue is just one disease.

But here’s the truth — there are four different types of dengue viruses widely circulating in Malaysia right now.


That means even if you’ve had dengue before, your body is only protected from that one type.

The other three? They’re still out there, waiting for their turn.


🔬 One Virus, Four Faces

Dengue is caused by a mosquito-borne virus, but it’s not a single serotype.

There are four distinct serotypes — DENV-1, DENV-2, DENV-3, and DENV-4.


Each behaves just a little differently.

When you recover from DENV-1, your body builds immunity only against that version.

But if a mosquito later bites you carrying DENV-2, DENV-3, or DENV-4, you can still get sick again — sometimes even more severely.


In Malaysia, all four types often circulate at the same time — sometimes even within the same neighborhood.

So even if you’ve beaten dengue once, there’s still a high chance of being exposed to a different strain.


💉 A Real Fact About the Dengue Vaccine

The Qdenga dengue vaccine was developed to protect you from all four dengue virus types — the full family.


According to studies approved by Malaysia’s National Pharmaceutical Regulatory Agency (NPRA):

  • It helps prevent dengue fever for at least 12 months after completing two doses.
  • It reduces the risk of severe dengue and hospitalisation by 90% within the first 18 months.

With Malaysia’s frequent rainfall and high mosquito activity, the risk is everywhere — from your home to your school or office.

Vaccination gives your body the broad protection it needs, not just a partial shield.


Malaysians Should Pay Attention! 🚨

Dengue is changing fast — with four virus types now circulating across Malaysia.

Join our Alpro Dengue Watch WhatsApp Circle to stay updated on dengue hotspots, mosquito alerts, and vaccine promotions near you.