Travel Vaccination Guide: Region-by-Region Shots You Actually Need

Start 4 to 8 Weeks Before You Fly

The single most common vaccination mistake is timing. Many travelers assume they can walk into a clinic the week before departure and get everything sorted in one visit. In reality, several travel vaccines need multiple doses spaced weeks apart, and some do not reach full protection until 10 to 14 days after the final shot.

A realistic timeline looks like this:

• 6 to 8 weeks before: Book a travel clinic appointment. This is when multi-dose series like rabies or Japanese encephalitis need to begin.
• 4 weeks before: Get single-dose vaccines such as yellow fever, hepatitis A, and typhoid.
• 2 weeks before: Start antimalarial tablets if your destination requires them (some regimens begin 1 to 2 days before, others a week or more).
• Last-minute trip? Even a same-week visit is worth it. Some protection is far better than none, and a clinician can prioritize the shots that matter most for your route.

Southeast Asia: Thailand, Vietnam, Indonesia and Beyond

Southeast Asia is the most-traveled region for first-time long-haul trips, and the vaccination picture is manageable but not trivial. Most cases are recommended rather than legally required, but skipping them is a real health gamble.

Recommended for most travelers

• Hepatitis A: Spread through contaminated food and water. Essential given how central street food is to the experience.
• Typhoid: Same transmission route. Especially important for longer stays and rural travel.
• Tetanus-diphtheria (Tdap): Make sure your routine booster is current (within 10 years).

Consider based on your itinerary

• Japanese encephalitis: A mosquito-borne disease relevant for rural stays, rice-farming areas, or trips longer than a month during the rainy season. It requires a two-dose series.
• Rabies: Worth considering if you will be near stray dogs and monkeys or far from medical care. Bali and rural Thailand are common concerns.
• Malaria tablets: Risk varies sharply by exact location. Major cities and beach resorts are usually low-risk, while border regions and jungle areas are not.

Because risk is so location-specific, the exact towns on your route matter more than the country name. This is where a detailed day-by-day plan pays off.

Sub-Saharan Africa: Where Yellow Fever Gets Serious

Africa is where vaccination stops being optional and becomes a border requirement. Many sub-Saharan countries — including Kenya, Tanzania, Ghana, Nigeria, and much of West and Central Africa — either require a yellow fever certificate for entry or strongly recommend it.

Core vaccines for the region

• Yellow fever: Often mandatory. One dose now provides lifelong protection under current guidelines, but the certificate is the part that matters at the border (more on that below).
• Hepatitis A and typhoid: Recommended almost everywhere, same food-and-water reasoning as Asia.
• Meningococcal (ACWY): Important for the "meningitis belt" across the Sahel, particularly during the dry season from December to June.
• Malaria prevention: Much of sub-Saharan Africa is high-risk year-round. Antimalarial tablets plus bite-avoidance measures are not optional here — they are the main line of defense.

South America and the Amazon Basin

South America splits into two very different risk profiles. Coastal cities and the southern cone (Buenos Aires, Santiago, Montevideo) need little beyond routine vaccines. The Amazon basin and tropical lowlands of Brazil, Peru, Bolivia, and Colombia are a different story.

• Yellow fever: Recommended, and sometimes required, for Amazon regions and much of Brazil. If you plan to continue onward to certain countries afterward, they may demand proof that you were vaccinated before arriving.
• Hepatitis A and typhoid: Standard recommendations across the continent.
• Malaria: Present in Amazon lowlands but absent at high altitude. Machu Picchu and Cusco, for example, are too high for malaria.
• Altitude, not a shot, but plan for it: Cities like La Paz, Cusco, and Quito sit high enough that altitude sickness is a genuine concern. Build a day or two of acclimatization into your schedule rather than climbing straight from sea level.

The lesson repeats: the same country can be malaria-free at altitude and high-risk in the jungle. Your specific stops decide your shot list.

The Yellow Fever Certificate Explained

The yellow fever vaccine comes with something unique: an official International Certificate of Vaccination or Prophylaxis, often called the "yellow card." This is a legal document, not just a health record, and border officers in affected countries can and do ask for it.

What you need to know

1. Validity: Under current WHO rules, the certificate is valid for life after a single dose. Older cards showing a 10-year expiry are still considered valid.
2. Activation delay: The certificate becomes valid 10 days after vaccination. Get the shot too late and the paperwork will not be accepted at the border, even if you were physically vaccinated.
3. Where to get it: Only designated yellow fever vaccination centers can issue the stamped certificate. A regular pharmacy shot will not produce a valid card.
4. Onward travel rule: Countries often require the certificate not because of where you are going, but because of where you have been. Transiting through a yellow-fever country can trigger a certificate requirement at your next destination.

Preparing Your Personal Vaccination Plan

No blog post can replace a professional consultation, because your risk depends on your exact route, the season, your medical history, and how long you stay. Use this article to arrive prepared, not to self-prescribe.

Before your clinic visit, pull together:

• Your finalized itinerary with every city, region, and date — rural and jungle stops especially.
• Your vaccination history, including any yellow card from past trips.
• Notes on activities that change risk: safaris, jungle treks, extended rural stays, or working with animals.
• Any onward or transit countries, since these can trigger certificate requirements.

The clearer your plan, the more precise the clinic's advice will be. If you have not mapped your trip yet, myTravel can generate a full day-by-day itinerary from your destinations and dates — bring that printout to your appointment so the recommendations match exactly where you are going and when.

Stay healthy, plan early, and let the paperwork be one less thing to worry about once you are on the road. Ready to map your route? Start planning your trip and build the itinerary you will hand to your travel clinic.