Staying well in Vietnam, and what the risk actually is

Most Vietnam health advice is a list of vaccines. The list is short and worth having, and it describes almost none of what actually goes wrong. The two things that do go wrong are a stomach and a road.

What vaccinations do you actually need?

Hepatitis A and typhoid. Those are the two every health authority names for Vietnam, on top of the routine adult schedule most people already hold — measles, mumps and rubella, tetanus and diphtheria, polio, chickenpox and a seasonal flu shot.

Nothing is legally required for entry from most countries. These are recommendations about your own risk, not paperwork for the border, and the e-visa process asks for none of them.

Beyond those two, the list depends on your trip rather than on the country. Rabies matters more if you will be far from a hospital or working with animals. Japanese encephalitis matters more for long rural stays in the wet season. A clinic that asks where you are actually going will give a different answer from a website that does not.

When should you book the appointment?

Six to eight weeks before departure, and 8 is better than 6. Several of these are multi-dose courses and none is instant, so the lead time is the part people get wrong rather than the choice of vaccine.

Leaving it late is not a reason to skip the clinic. A single dose of hepatitis A gives substantial protection; the full 2-dose course takes it above 95 percent. A pharmacist or travel nurse can still do something useful the week before a flight. Earlier is simply better.

Is malaria a problem?

Not on a normal tourist route. Hanoi, Ho Chi Minh City, Da Nang, Hoi An, Nha Trang, the Red River delta and Ha Long Bay are not areas where prophylaxis is routinely advised, and most visitors never leave that list.

Rural and forested areas, particularly near the Cambodian and Laotian borders and in parts of the central highlands, are the exception. If your itinerary includes those, that is a question for a clinic with your actual route in front of it.

Dengue is the mosquito-borne illness travellers are more likely to meet, and it is present in urban areas as well as rural ones. There is no traveller vaccine for it, which makes bite avoidance the whole strategy: repellent, covered arms and legs at dawn and dusk, and air conditioning or a net at night.

What actually makes travellers ill?

The stomach, almost always. Travellers' diarrhoea affects an estimated 30 to 70 percent of visitors to Southeast Asia, which makes it more likely than not on a trip of any length. It is usually mild, usually self-limiting, and almost never the exotic thing people were vaccinated against.

Carry oral rehydration salts. They weigh nothing, they are the actual treatment for the actual problem, and they are worth more in a bag than most of what people pack for health.

The street food safety guide covers what the evidence blames, and it is not what most visitors assume: raw herbs, cut fruit, unwashed hands and ice, rather than the hot food off the grill.

What about the water?

Do not drink from the tap. Bottled and filtered water is universal, cheap and what everyone drinks, including Vietnamese households, and most hotels provide it.

Ice is the more interesting question. Commercial ice in Vietnam is generally made from treated water at licensed plants and is broadly fine; the risk is in how it is stored and handled after that. Our food safety guide has the detail, including the study that found the problem is real but smaller than its reputation.

What is the biggest Vietnam health risk, honestly?

The road. Traffic injury is what puts visitors in Vietnamese hospitals and on early flights home, and it outranks every infectious disease on this page combined.

The single decision that raises it most is renting a motorbike. That is covered properly in the safety guide and the riding guide, including the licence rules, which most visitors get wrong and which decide whether an insurer pays.

No vaccine addresses this. A helmet that actually works, a Grab car and a decision not to ride do. For the duller daily question — what to drink — the water guide covers what comes out of the tap and what does not.

What should your insurance actually cover?

Three things worth checking rather than assuming. Medical evacuation, because Con Dao and Phu Quoc are further from a major hospital than they feel. Motorbike riding, which many policies exclude outright or condition on holding the correct licence.

And the excess. Vietnamese healthcare is inexpensive by Western standards, so a routine clinic visit may cost less than the excess on the policy you bought to cover it. That is not an argument against insurance — it is an argument for reading what the expensive scenarios are, which the travel insurance guide does in full.

What about herbal medicine?

Herbal medicine is everywhere, and it sits inside the formal health system, which surprises people. The traditional medicine guide covers what the shops with the wooden drawers do, and where the line sits between that and a clinic.

Does the air matter?

In Hanoi between November and March, for some people. The air quality guide has the numbers and the months, and the short version is that a healthy adult on a two-week trip can ignore it while anyone with asthma should not.

What do you call in an emergency?

Three numbers, free from any phone, and none of them needs a local SIM to dial.

115 is the ambulance, 113 the police and 114 the fire service, from any phone and at no charge. The safety guide covers the rest of that picture.

One practical caveat: in a city, a taxi or a Grab to a hospital is often quicker than waiting for an ambulance, and it is what Vietnamese friends will suggest. Know which hospital before you need it — the international ones are in Hanoi, Da Nang and Ho Chi Minh City, and everywhere else the provincial hospital is the answer.