MediLeave Editorial Team. Medically reviewed by Dr Sabrina Campbell BSc MBBS MRCGP FRACGP MSc. Last reviewed on 11th Feb 2026
Bali is one of the most popular international destinations for Australians, but travel to tropical regions comes with health considerations that differ from those at home. Differences in climate, sanitation standards, food preparation and exposure to infectious diseases mean travellers may encounter illnesses that are uncommon in Australia. Each year, many Australians return from overseas with preventable infections, often due to limited pre-travel preparation. In some cases, illnesses acquired abroad can also be brought back into the community. Preparing your health before travelling to Bali helps reduce these risks and allows you to enjoy your trip with greater peace of mind.
Travel-related illness can affect anyone, including young and otherwise healthy travellers. Common infections can escalate quickly in hot climates, particularly if dehydration or delayed treatment occurs. Preparing in advance helps to:
• Reduce the risk of preventable infections
• Minimise disruption to your holiday
• Avoid costly medical care or evacuation
• Protect your health on return to Australia
Recommended Vaccinations for Bali
Australians travelling to Bali are advised to review their vaccinations six to twelve weeks before departure. This allows enough time for vaccine courses to be completed and immunity to develop.
Routine vaccinations should be up to date, including:
• Measles, mumps and rubella (MMR)
• Diphtheria, tetanus and pertussis
• Polio
• Influenza
• COVID-19
Measles outbreaks continue to occur in Indonesia, including Bali, making two documented doses of MMR particularly important. Polio has also re-emerged in parts of Indonesia, and some travellers may require a booster.
In addition to routine immunisations, the following travel-specific vaccines are commonly recommended for Bali:
• Hepatitis A, due to food and water contamination risks
• Typhoid, particularly if eating outside major resorts or travelling rurally
• Hepatitis B, if immunity is uncertain
• Japanese encephalitis for longer stays or rural travel
• Rabies for higher-risk travellers, including children or those with animal exposure
Indonesia does not require proof of vaccination for travellers arriving directly from Australia, but immunisations are strongly recommended to protect your health.
Even with vaccinations, some illnesses remain common among travellers.
Traveller’s Diarrhoea (Bali Belly)
Traveller’s diarrhoea affects a large proportion of visitors to Bali and is usually caused by contaminated food or water. Symptoms may include abdominal cramping, loose stools, nausea and fever. Prevention focuses on:
• Drinking bottled or boiled water
• Avoiding ice and unpasteurised drinks
• Eating freshly cooked food from reputable venues
• Practising good hand hygiene
Travellers should carry oral rehydration solutions and basic medications. Medical review is advised if symptoms are severe, prolonged or associated with dehydration.
Mosquito-Borne Illnesses
Dengue fever is endemic in Bali and occurs year-round, with increased cases during the wet season. There is no routine dengue vaccine for Australian travellers, so bite prevention is essential. Recommended measures include:
• Using insect repellent containing DEET or picaridin
• Wearing long sleeves and trousers, particularly at dawn and dusk
• Staying in accommodation with screens or air conditioning
These precautions also reduce the risk of other mosquito-borne infections.
Rabies
Rabies is present in Bali among dogs, monkeys and other mammals. It is transmitted through bites or scratches and is almost always fatal once symptoms develop. Travellers should:
• Avoid contact with animals, including monkeys in tourist areas
• Supervise children closely
• Wash any bite or scratch immediately with soap and water
• Seek urgent medical care for post-exposure treatment
Access to rabies treatment may be limited locally, making prevention and insurance essential.
While travel restrictions have eased, COVID-19 continues to circulate. Travellers should remain up to date with recommended vaccinations and practise sensible precautions, particularly in crowded environments, to avoid illness and travel disruption.
Serious complications from common travel illnesses, including dehydration and electrolyte disturbances, have occurred in Australian travellers returning from Bali. These cases highlight the importance of early advice, appropriate medications, vaccination and comprehensive travel insurance. Many severe outcomes are preventable with timely preparation.
Telehealth services provide a convenient way to access travel health advice before departure. Through an online consultation, a doctor can:
• Review your medical history and travel plans
• Recommend and prescribe appropriate medications
• Advise on required or recommended vaccinations
• Provide practical guidance for managing illness overseas
• Assist with digital prescriptions and referrals
In some situations, a telehealth appointment may also be accessed while travelling to support decision-making if illness occurs.
Before travelling, consider the following:
• Schedule a medical or telehealth consultation 6–8 weeks before departure
• Ensure routine and travel-specific vaccinations are up to date
• Pack a personal medical kit including regular medications, rehydration salts and basic first aid
• Practise food and water safety throughout your trip
• Use insect repellent and protective clothing daily
• Avoid contact with animals
• Stay well hydrated and protect yourself from the sun
• Take out comprehensive travel insurance that includes medical evacuation
• Monitor official travel health advice before and during your trip
With appropriate preparation, most Australians can travel to Bali safely and confidently. Travel health planning allows you to focus on enjoying your holiday and returning home healthy.
The content provided is for general informational purposes only and does not constitute medical advice, nor is it a substitute for professional medical consultation. The views or recommendations expressed in this article and any linked resources do not necessarily reflect those of MediLeave or its affiliates.
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