Bali Trip Checklist: What Vaccines and Anti-Malarials You Need

What matters most for Bali

You need to think about two things before you travel: which vaccines protect you against diseases Bali carries, and whether you need anti-malarial tablets. Both require planning ahead. Vaccines take weeks to become fully effective. Anti-malarials need to be started before you arrive. Neither is something you can sort out at the airport.

Bali sits in a malaria zone, though the risk varies by area and season. Dengue fever is common. Japanese encephalitis and typhoid are present. Yellow fever is not endemic in Bali, but some countries require proof of yellow fever vaccination if you are arriving from Indonesia, so check your onward travel plans.

Book a travel consultation at least four to six weeks before you fly. This gives you time to complete vaccine courses and collect anti-malarials without rushing.

Which vaccines you need for Bali

Hepatitis A. This is the most common travel vaccination for Bali. It protects against a virus spread through contaminated food and water. You need two doses, given at least six months apart. The first dose gives you protection within two weeks. Most travellers have this one.

Typhoid. Spread through contaminated food and water, typhoid is a serious bacterial infection. A single dose protects you for three years. Many people combine this with hepatitis A in a single injection.

Japanese encephalitis. This viral infection is transmitted by mosquitoes, particularly in rural areas and during the rainy season. Risk is low for most tourists staying in Bali's main resorts, but higher if you are visiting rural villages or staying longer than a month. Two doses are needed, one month apart.

Polio, tetanus, and diphtheria. Check that your routine childhood vaccines are up to date. If you have not had a booster in the last ten years, you should have one before travel.

Yellow fever. Not required for Bali itself, but check whether your next destination requires proof of vaccination. If you are flying on to parts of Africa or South America after Bali, you may need it.

Rabies. Consider this if you plan to spend time in rural areas or work with animals. It requires three doses over three to four weeks.

Your pharmacist will assess your personal risk based on where you are staying, how long you are there, and what you plan to do.

Anti-malarials: which one and when to start

Malaria is transmitted by mosquitoes, mainly between dusk and dawn. Anti-malarial tablets reduce your risk significantly but do not eliminate it. You must also use insect repellent, wear long sleeves at dawn and dusk, and sleep under a mosquito net if your accommodation is not air-conditioned.

Chloroquine and proguanil. These are older options, taken as separate tablets. You start proguanil one to two days before travel and continue for four weeks after you leave. Chloroquine is taken weekly, starting one to two weeks before travel. Side effects are generally mild. This combination is less commonly used now because resistance is increasing.

Atovaquone-proguanil (Malarone). This is a combination tablet taken once daily. You start it one to two days before travel and continue for seven days after you leave. It is well tolerated and has fewer side effects than older options, but it is more expensive. It is a good choice if you have a short trip or cannot tolerate other options.

Doxycycline. This antibiotic is taken once daily, starting one to two days before travel and continuing for four weeks after. It is affordable and effective. You must take it with a full glass of water, avoid lying down for 30 minutes after taking it, and use high-factor sunscreen because it increases sun sensitivity. It is not suitable in pregnancy.

Mefloquine (Lariam). This is taken once weekly, starting two to three weeks before travel. It is effective but has a higher rate of neuropsychiatric side effects (dizziness, vivid dreams, mood changes) than other options. It is usually a second-choice option.

Your pharmacist will help you choose based on the length of your stay, your medical history, other medicines you take, and any previous reactions to anti-malarials.

How to prepare: step by step

Four to six weeks before travel. Book your travel health appointment. Bring your NHS vaccination record (the red book if you have it) or ask your GP surgery for a printout. List any medical conditions, allergies, and medicines you take. Tell the pharmacist where you are staying in Bali and for how long.

At your appointment. The pharmacist will check which vaccines you need and whether anti-malarials are recommended for your specific itinerary. You may receive some vaccines on the day. Others require a follow-up appointment. You will be given a prescription for anti-malarials and clear instructions on when to start them.

Two to three weeks before travel. Collect your anti-malarial prescription and read the information sheet carefully. Start taking them on the date advised, not earlier. If you have any side effects or concerns, contact the pharmacy before you leave.

One week before travel. Check that all your vaccines are complete. Confirm you have enough anti-malarial tablets for the full course (including the four weeks after you return). Pack your vaccination record in case you need to show proof of yellow fever vaccination at another airport.

What to bring and practical tips

Keep your anti-malarial tablets in their original labelled container. Customs officials in some countries check medication packaging. Bring a copy of your prescription or a letter from the pharmacy explaining what the tablets are for.

Pack a high-SPF sunscreen if you are taking doxycycline. Bring insect repellent containing at least 20 percent DEET or 20 percent picaridin. Apply it to exposed skin and reapply after swimming or sweating. Mosquitoes are most active at dusk and dawn, so plan indoor activities or wear long sleeves and trousers during these times.

If you are staying in a basic guesthouse without air conditioning, bring a lightweight mosquito net. Check that your travel insurance covers malaria treatment and evacuation if needed.

Do not stop your anti-malarials early just because you feel fine. Malaria can take weeks to show symptoms. Continue the full course for four weeks after you leave Bali, even if you are back in the UK.

Common questions

Do I need all these vaccines? No. Your pharmacist will recommend only those relevant to your itinerary and medical history. A two-week beach holiday in a resort requires fewer vaccines than a month trekking in rural areas.

Can I get vaccines on the NHS? Some travel vaccines are available on the NHS through your GP, but availability varies. Many pharmacies offer private travel vaccination services, which means you can book quickly and get same-day or next-day appointments.

What if I am pregnant or breastfeeding? Some vaccines are not safe in pregnancy. Tell your pharmacist if you are pregnant, planning to become pregnant, or breastfeeding. You may need to delay your trip or adjust your vaccine schedule.

Can I take anti-malarials if I am on other medicines? Some anti-malarials interact with other drugs. Always bring a list of your current medicines to your travel health appointment.

What if I forget to start my anti-malarials on time? Start them as soon as you remember, but contact the pharmacy for advice. Do not double-dose to catch up.

How long does immunity last? Hepatitis A and typhoid vaccines last for many years (often a lifetime for hepatitis A, three years for typhoid). Japanese encephalitis lasts three years. Polio and tetanus need boosters every ten years. Your pharmacist will tell you when you need a repeat dose.

What if I get ill in Bali? Seek medical attention immediately if you develop fever, severe headache, or muscle pain. Tell the doctor you have been taking anti-malarials and when you started. Malaria can develop even with prevention, so symptoms must be checked quickly.

Book your travel health appointment now

Preparing for Bali properly takes time, but it is straightforward once you have a plan. Fulham Palace Pharmacy in Fulham offers travel health consultations and can administer vaccines and dispense anti-malarials on the same day or within a few days, depending on what you need. The pharmacists here know the questions to ask and can tailor advice to your specific trip. We offer flexible appointment times, including early mornings and evenings, so you can fit your travel health check around work or family commitments.

Book a travel consultation with us today to make sure you have everything you need before you fly.