Vaccines, Malaria, Dengue: Protecting Your Everyday Health in Laos

By Clem-Titsada — Expat Laos SALITHYNA — Updated: 31 August 2026

Moving to Laos for several months or several years? The health advice written for a one-week tourist is not written for you. Here is the complete framework on vaccines for Laos and everyday health, checked against official sources.

The good news first: no vaccine is required to enter Laos (except yellow fever if you arrive from an endemic country). But a long-stay expat lives through several seasons, visits the markets and rural areas, and shares daily life with the local population: the recommended vaccines for Laos then become a real subject, and a few everyday habits — mosquitoes, water, medicines — make all the difference.

This guide sets out the vaccines for Laos that matter for a long stay, the real geography of malaria, why dengue is the number-one risk in Vientiane, and the everyday reflexes — water, food, pharmacies, medical contacts — that keep an expat family healthy. Every recommendation here is sourced from the Institut Pasteur, France Diplomatie or the French health authorities, and dated.

1. Which vaccines for Laos do you need before you move?

Laos requires no vaccine on entry for travellers coming from countries without an active yellow fever outbreak. Do not let this apparent freedom mislead you: when you choose your vaccines for Laos as an expat, the Institut Pasteur recommends bringing your routine schedule up to date and adding several specific vaccines depending on where and how you will live.

The table below summarises the vaccines for Laos that a travel medicine doctor will go through with you, with the schedule and the profiles concerned.

🔹 QDENGA: the newest of the vaccines for Laos — but for whom exactly?

QDENGA (live attenuated, tetravalent, licensed from age 4, two doses three months apart) reached French retail pharmacies in early 2025 — Vidal recorded its availability on 11 February 2025 — and it is not reimbursed. One distinction is worth making, because it is often missed: the Haute Autorité de Santé opinion of 17 December 2024 covers residents of the French overseas territories — children aged 6 to 16 with a documented previous dengue infection, and adults aged 17 to 60 with comorbidities such as diabetes, obesity or a chronic heart or lung condition. It is not the text that applies to an expat in Asia.

Yours is the travellers’ framework. France’s High Council for Public Health updated it on 24 April 2025, and the decision now weighs three things together: the length of your stay in an endemic area, your personal history of dengue, and your comorbidities — the exact profile of an expatriation to Laos. The vaccine is contraindicated during pregnancy and breastfeeding and for immunocompromised patients, and it never replaces mosquito protection. Bottom line: of all the vaccines for Laos, this is the one decided case by case, with a travel medicine doctor, on your precise profile.

🔹 Rabies: the most neglected of the vaccines for Laos, and the most useful

Rabies is present in Laos and stray dogs are everywhere, including in Vientiane. Pre-exposure vaccination does not remove the need for care after a bite, but it radically simplifies the protocol: 2 to 3 booster injections instead of 5, and above all no need for rabies immunoglobulins — which are practically unobtainable in Laos. For children who play outdoors, it is a genuine safety net — and, among all the vaccines for Laos, the one families most often skip and later regret.

2. Is malaria really a risk in Laos?

Yes — but with a precise geography you need to understand to get your strategy right. According to the Institut Pasteur, transmission occurs all year round throughout the country, except in Vientiane. The risk is highest in the southern third — along the Xe Khong river and the Cambodian border — and moderate along the borders with China, Myanmar, Thailand and Vietnam. France Diplomatie reports a resurgence of cases in the south of the country, which makes prevention particularly necessary for hikers.

In practice, for an expat:

• You live in Vientiane and stay there: no daily chemoprophylaxis needed — but rigorous mosquito protection, because dengue certainly is around.
• You travel to the provinces, especially the rural South (Attapeu, Sekong, Champasak, Salavan): discuss a preventive treatment (atovaquone-proguanil or doxycycline) with your doctor before the trip, depending on its length and conditions.
• In every case: any fever during your stay, or in the months after returning, requires a prompt consultation with a malaria test.
• Remember that no vaccine protects against malaria: unlike the other vaccines for Laos on this list, this risk is managed by mosquito protection and, where needed, by tablets.

3. Why is dengue the number-one risk in Vientiane?

Unlike malaria, dengue strikes in the heart of the capital — which is why the QDENGA question comes up in almost every conversation we have about vaccines for Laos with a family moving to Vientiane. Its vector mosquitoes (Aedes) bite during the day, breed in the smallest pool of stagnant urban water, and the epidemic peak follows every rainy season, from May to October.

4. What other health risks should you know about?

🔹 Traveller’s diarrhoea

It is the most common health problem of the first weeks after arrival, caused by contaminated water or food. The rules: sealed bottled water, ice only from industrial sources, peeled fruit, and meat and fish thoroughly cooked. Be especially careful with fermented raw fish dishes (pla som, koi pla), which also carry a liver fluke risk.

🔹 Tuberculosis, schistosomiasis, STIs

Tuberculosis incidence is high in Laos: a baseline test (IGRA) on arrival, then periodic checks, makes sense for professions in close contact with the population. Schistosomiasis (bilharzia) is present in some freshwater areas of the South, particularly around the 4,000 Islands: never swim in stagnant or slow-moving fresh water that is not known to be safe. Finally, HIV and other STIs circulate as they do everywhere: systematic condom use and regular check-ups with a trusted doctor.

5. How do you protect yourself from mosquitoes every day?

Mosquito protection is your first line of defence — against dengue by day, and against malaria by night in the provinces. It is also what makes your vaccines for Laos work as a system rather than a checklist: no vaccine covers dengue transmission on its own, and none covers malaria at all. The effective routine comes down to five habits:

• Skin repellent based on DEET (30-50%), icaridin or IR3535, reapplied as directed — especially in the daytime during the rainy season.
• Covering, light-coloured clothes at mosquito hours, ideally treated with permethrin.
• Treated mosquito net for any night in the provinces or in non-air-conditioned housing.
• Hunt down stagnant water around the house: saucers, gutters, tyres, open tanks — that is where Aedes mosquitoes breed.
• Air conditioning and diffusers indoors: cool, ventilated rooms carry far fewer mosquitoes.

6. Can you drink the water and eat safely in Laos?

Tap water is never safe to drink in Laos, even in Vientiane — even for brushing your teeth if you are sensitive. The solutions: sealed bottled water (check the cap), home-delivered filtered water dispensers — the standard in expat households —, or filtering and disinfecting at home. On the food side, Lao cuisine can be enjoyed with confidence in clean establishments where dishes are served hot; caution applies to uncontrolled raw vegetables, artisanal ice and street stalls whose hygiene looks doubtful. These hygiene standards are something we know inside out — they are our team’s core business, detailed in our guide to sanitary regulations and professional hygiene in Laos.

7. Where can you find reliable pharmacies and medicines?

Pharmacies are everywhere in Vientiane and many dispense without prescription, but quality varies enormously. France Diplomatie is categorical: never take medicines bought on the street, because of the counterfeit risk — a very real one in Southeast Asia, including for antimalarials. Buy only from established pharmacies; we have listed the 4 trusted pharmacies in Vientiane used by the expat community.

And for chronic treatments: bring 3 to 6 months of supply from home in the original packaging with the prescription, as many products are unavailable locally.

For hospital care rather than a pharmacy, France Diplomatie lists the Alliance International Medical Centre, open around the clock and able to organise an evacuation to Thailand, alongside the Kasemrad hospital, open in Vientiane since August 2021.

8. Where do you get your vaccines for Laos, and at what cost?

Three routes exist, and they are not equivalent. The order below is the one we recommend to families preparing a move.

Two rules apply whichever route you take. First, leave with a written vaccination record in English, and a photograph of it on your phone: that is the document a doctor in Vientiane or Udon Thani will ask for. Second, plan the schedule backwards from your flight — a rabies course runs over three weeks and the two QDENGA doses are three months apart, so the vaccines for Laos belong in the same conversation as your visa, not in the week before you land.

9. What belongs in the expat’s medical kit?

Beyond the first-aid kit, every family member should keep a documentary kit within easy reach — in an emergency, this information makes the difference:

• Blood group card and allergy list (in English, ideally also in Lao)
• List of current medications (molecule + dosage) and a copy of your vaccination record, showing the vaccines for Laos you have actually received and their dates
• Your international health insurer’s 24/7 emergency number and policy number
• Your two medical anchors in Vientiane, both listed by France Diplomatie: the Alliance International Medical Centre, open around the clock (+856 21 513 095), and the French Medical Centre (+856 21 21 41 50) — official contact details
• The number of the Aek hospital in Udon Thani, Thailand, the usual destination for a medical evacuation from Vientiane: +66 42 34 25 55
• The contact details of your embassy in Vientiane

Conclusion: prevention beats evacuation

Living in Laos does not require paranoid vigilance — thousands of expat families live here in excellent health. But it does demand the preparation many people skip: vaccines for Laos updated before departure, daily mosquito protection, bottled water, reliable pharmacies, and two doctors’ numbers saved in your phone. These simple rules cut the risks dramatically without taking anything away from the pleasure of expat life. Settle your vaccines for Laos two to three months before the flight, and the rest is a matter of ordinary habits.

❓ Frequently asked questions

Which vaccines for Laos are mandatory to enter the country?

None. No vaccines for Laos are legally required at the border, except yellow fever if you arrive from a country where the disease circulates. The vaccines for Laos recommended for an expatriation are hepatitis A, typhoid, rabies and Japanese encephalitis, depending on your profile and where you will live.

When should you start your vaccines for Laos before moving?

Two to three months before departure. The rabies course runs over three weeks (D0, D7, D21 or D28), Japanese encephalitis needs two injections, and the two QDENGA doses are three months apart — a schedule that cannot be compressed into the fortnight before the flight.

Do children need different vaccines for Laos than adults?

The list is broadly the same, with two differences that matter. Rabies weighs more heavily for children, who play outdoors and approach animals. And QDENGA, licensed from age 4, is only considered in specific situations. Bring your child’s vaccination record and go through it with a travel medicine doctor before departure.

Is there malaria in Vientiane?

No: according to the Institut Pasteur, there is no malaria transmission in Vientiane. The risk exists everywhere else in the country, all year round, peaking in the southern third. In the city, the real mosquito risk is dengue.

Should you take antimalarial treatment permanently in Laos?

No. Chemoprophylaxis is reserved for stays in at-risk rural areas, mainly in the South, on medical advice. For daily life in Vientiane, the priority is mosquito protection against dengue.

What should you do after a dog bite in Laos?

Wash the wound with soap for 15 minutes, disinfect it, then go the same day to the AIMC or the French Medical Centre for the rabies protocol. If you are not vaccinated against rabies, an evacuation to Thailand may be necessary.

Can you drink tap water in Laos?

No, never, even in Vientiane. Use sealed bottled water or home-delivered filtered water, including for ice cubes.

Is the QDENGA dengue vaccine worth it for living in Laos?

It can be: available in France since January 2025, it is recommended in particular for people aged 6 to 60 with comorbidities on long stays in endemic areas. The decision is made with a travel medicine doctor, and the vaccine never replaces mosquito protection.

Where should expats seek medical care in Vientiane?

The expat community’s two references are the AIMC (Alliance International Medical Center, +856 21 513 095) and the French Medical Centre (+856 21 21 41 50). For serious cases, evacuation to Thai hospitals (Udon Thani, Bangkok) remains the standard reflex — hence the importance of solid international insurance.

Last updated 31 August 2026. This guide to vaccines for Laos is general information and does not replace a medical consultation: before departure, and for any vaccination or treatment decision, consult a travel medicine doctor. Main sources: Institut Pasteur, France Diplomatie, Haute Autorité de Santé and the French High Council for Public Health.

🔗 Continue exploring life in Laos

By Clem-Titsada, co-founder of Salithyna Group. Franco-Lao and based in Vientiane, she has been developing professional services adapted to international standards and to the realities of Laos since 2022.