No vaccinations are legally required to enter Vietnam from most countries. Immigration will not ask for a vaccine certificate on arrival unless you are travelling from a yellow-fever-endemic country, in which case proof of yellow fever vaccination is mandatory under WHO international health regulations. Everything else is a recommendation, not a rule — and the sensible shortlist is smaller than the pre-trip anxiety suggests. Travel-health authorities (CDC destination guidance, NHS fitfortravel, WHO) commonly recommend being current on routine boosters, adding hepatitis A for nearly everyone, and typhoid for anyone planning to eat the way Vietnam deserves to be eaten.
This guide is a map of what the authorities commonly recommend — not medical advice, and not a replacement for a travel-clinic consultation 4-8 weeks before departure. It covers the pre-trip half of the health story; our Vietnam healthcare and medical tourism atlas is the in-country half — hospitals, clinics, insurance billing, and emergency care once you are here.
What is required versus what is recommended
| Category | Vaccines | Who it applies to |
|---|---|---|
| Legally required for entry | Yellow fever certificate | Only travellers arriving from a yellow-fever-endemic country (parts of Africa and South America, per the WHO country list) |
| Commonly recommended for most travellers | Routine boosters (MMR, tetanus-diphtheria), hepatitis A | Nearly all visitors, per CDC and NHS-style guidance |
| Commonly recommended for many | Typhoid | Street-food travellers, longer trips, travel beyond the big cities |
| Situational | Hepatitis B, rabies, Japanese encephalitis | Long stays, rural and monsoon-season travel, animal contact — a travel-clinic decision |
| Worth checking currency | Influenza, COVID-19 | Per your home-country schedule |
Three notes make the table practical. MMR currency matters: Vietnam experienced a significant measles outbreak across 2024-2025. Tetanus-diphtheria matters because the most common traveller injury here is a motorbike scrape on a rural road. And typhoid earns its place for eaters — an itinerary built around markets and plastic stools moves it from optional to commonly recommended; hygiene tactics for that itinerary live in our street food safety guide.
Japanese encephalitis is the most misunderstood of the situational three. It is mosquito-borne, rural, and rice-paddy-associated, with transmission peaking around the northern summer monsoon. Guidance typically reserves it for travellers spending a month or more in rural areas, or shorter stays with heavy outdoor exposure in season — not for a two-week city-and-coast trip. Hepatitis B is a straightforward call for long-stayers, anyone anticipating medical or dental treatment in-country, and new tattoos.
Mosquitoes are the real everyday risk
If Vietnam has one health risk that deserves a traveller's daily attention, it is dengue — not malaria. Dengue is urban, it is transmitted by Aedes mosquitoes that bite in daylight, and it surges in the rainy season, which in the south runs roughly May to November — timing covered in our rainy season guide. Vietnam logged more than 367,000 cases in the record 2022 season, per WHO Western Pacific dengue reporting, and tens of thousands of cases in an ordinary year. Travellers are not exempt: the case profile is heavily urban, exactly where visitors spend their time.
There is no dengue vaccine most travellers can count on in 2026. Qdenga (TAK-003) is licensed in the EU, the UK, and several other countries, but traveller recommendations are still evolving, clinic availability is patchy, and the standard two-dose course is spaced three months apart — impractical for near-term trips. Treat it as a question to raise at the travel clinic, not a plan. What works now is behavioural: repellent with 30-50 percent DEET or 20 percent picaridin worn daily and reapplied, long sleeves at dawn and dusk, screened or air-conditioned rooms, and not keeping standing water on a long-stay balcony. Repellent is cheap and everywhere in Vietnamese pharmacies — our pharmacies and OTC guide covers what to buy on arrival.
Malaria deserves the honest version, because blanket advice wastes travellers' money in both directions. Risk in Hanoi, Ho Chi Minh City, Da Nang, Hoi An, Ha Long Bay, Nha Trang, and the main tourist corridor is very low, and travel-health authorities generally do not suggest prophylaxis for typical itineraries. Vietnam has driven confirmed cases down to a few hundred per year nationally and targets elimination by 2030. The exceptions are some forested inland and border areas — parts of the central highlands and provinces along the Cambodia and Laos frontiers — where residual transmission persists. If your plan includes jungle trekking or long rural stays in those regions, bring the exact itinerary to a travel clinic and ask; that is a precision question, not a case for pills by default.
Rabies deserves its own decision
Rabies in Vietnam is not theoretical. Ministry of Health figures put human deaths above 80 in 2024, one of the worst years in a decade, with dogs the overwhelming source — context in the WHO rabies factsheet. Street dogs are common, cats and monkeys also transmit, and once symptoms appear the disease is almost always fatal, which is why travel-health guidance treats it seriously despite the low probability of any single traveller being bitten.
The pre-exposure series (2-3 doses over one to four weeks) is commonly suggested for long stays, remote and rural travel, cycling and motorbiking in the countryside, animal work, and children. Its real value is logistical: vaccinated travellers who are bitten need fewer follow-up doses and no rabies immunoglobulin, which matters because immunoglobulin can be scarce outside the major cities. For everyone, vaccinated or not, the rule is the same — wash any bite or scratch with soap and running water for 15 minutes and get to a clinic the same day. Post-exposure vaccination is reliably available at international clinics and the Pasteur Institute in HCMC; the healthcare atlas lists which clinics to head for, city by city.
Vaccination timing: 8, 4, and 2 weeks out
| Countdown | What travel-health guidance suggests |
|---|---|
| 8 weeks out | Book the travel-clinic appointment. Start any multi-dose courses advised for your trip: rabies pre-exposure (2-3 doses over one to four weeks), Japanese encephalitis (two doses, typically up to 28 days apart), hepatitis B (accelerated schedules exist) |
| 4 weeks out | Hepatitis A (a single dose protects for the trip; a later second dose extends it for decades), typhoid (injectable or oral), routine boosters — MMR, tetanus-diphtheria |
| 2 weeks out | Influenza and COVID-19 currency; typhoid is still worthwhile if missed earlier; yellow fever if your routing includes an endemic country — the certificate only becomes valid 10 days after the shot |
Certificates to carry: the ICVP "yellow card" if yellow fever applies to your routing, a photo of your full vaccination record, and a doctor's letter for any prescription medication. Vietnam does not check vaccination records at the border outside the yellow fever case, but clinics in-country will ask what you have had if you ever need care.
Getting shots in Vietnam instead of at home
For long-stayers, finishing — or even starting — some courses in Vietnam is a legitimate option, not a compromise. Western travel clinics charge a consultation fee plus per-dose prices that add up fast; rabies vaccine in the US commonly runs several hundred dollars per dose. International clinics in Hanoi, Da Nang, and HCMC, and the Pasteur Institute in HCMC, administer internationally sourced vaccines for a fraction of that — commonly tens of dollars per dose rather than hundreds. The same cost logic that powers Vietnam's medical tourism applies to a vaccine series, and the healthcare atlas covers the clinic tiers and names.
The trade-offs are manageable. Anything time-critical — hepatitis A, typhoid, routine boosters — is better done at home, while multi-dose courses that would not finish before departure anyway (rabies, hepatitis B, Japanese encephalitis) are the natural candidates for in-country completion. Stick to the international-clinic tier and keep the vaccination record card they issue.
The pre-trip checklist beyond vaccines
- Travel insurance with medical evacuation cover. The expensive Vietnam scenario is an evacuation, not a clinic visit — and the motorbike-licence clause voids more claims than any exclusion. Full comparison in our Vietnam travel insurance guide.
- Prescription medication. Bring the full trip's supply in original packaging with a doctor's letter. Some substances that are routine at home are controlled in Vietnam, so check yours before flying; what is realistically replaceable at a Vietnamese pharmacy is covered in the pharmacies and OTC guide.
- A dental check before departure. A loose filling found in week two of a trip is a bad souvenir — although if something does need work, Vietnam is one of the cheapest good places in the world to fix it.
- A small gut kit. Oral rehydration salts and loperamide, per the street food safety guide. Both restock cheaply at any pharmacy here.
- Repellent from day one. Buy DEET or picaridin at home or on arrival; start wearing it the first rainy-season morning, not after the first bites.
- Photos of everything. Vaccination records, prescriptions, insurance policy, passport — in cloud storage, not just on the phone.
Limitations
This guide summarises what travel-health authorities commonly recommend for Vietnam; it is not medical advice and cannot account for individual factors — pregnancy, immune status, chronic conditions, and children all change the list materially. Workaround: a travel-clinic consultation 4-8 weeks before departure, with your exact itinerary in hand, is the step this guide prepares you for rather than replaces.
Guidance also moves. Qdenga traveller recommendations are evolving, malaria risk maps shrink as Vietnam approaches its 2030 elimination target, and yellow-fever country lists update. The dengue and rabies figures cited are national-level numbers that vary sharply by year and province. Workaround: re-check the CDC or NHS fitfortravel Vietnam pages in the fortnight before you fly, and treat this page's 2026 framing as the baseline, not the final word.