Key Takeaways
- Higher-risk travel destinations are generally those where travellers may have greater exposure to infectious diseases, food- and water-borne illnesses, insect-borne diseases, or other region-specific health risks.
- Travel vaccines may be recommended or required depending on your destination, planned activities, length of stay, and personal health history.
- Risk can vary significantly within the same country, so healthcare providers consider specific cities, rural areas, seasons, and travel activities when assessing health precautions.
- Preparing early allows enough time to complete recommended travel vaccines, preventive medications, and other health measures before departure.
Travelling to another country can be an exciting experience, whether you are planning a holiday, visiting family, studying abroad, or travelling for work. However, different destinations have different health risks, and understanding these risks before departure can help you prepare appropriately.
Some regions have a higher prevalence of infectious diseases that may be uncommon in your home country. Others may have environmental conditions, sanitation challenges, or insect populations that increase the likelihood of certain illnesses. Your risk also depends on what you plan to do during the trip, rather than simply the country you are visiting.
Regions in parts of Africa, Asia, Latin America, the Caribbean, and the Middle East may be considered higher risk for certain travel-related infections, although the specific risks vary by country, region, season, and type of travel.
This is why a pre-travel health assessment is useful. A healthcare professional can review your itinerary and determine whether travel vaccines or other preventive measures are appropriate for your trip.
What Makes a Region Higher Risk?
There is no single definition of a “high-risk” travel destination. Instead, healthcare providers assess specific health risks associated with a particular location. Factors that may influence risk include:
- Prevalence of infectious diseases
- Availability of clean drinking water
- Food safety and sanitation
- Mosquito and tick populations
- Local vaccination coverage
- Access to healthcare
- Climate and seasonal conditions
- Planned activities
- Duration of travel
- Rural or remote travel
A destination may also have different levels of risk within its borders. For example, a traveller staying in a major city may have different exposure risks from someone visiting remote villages, forests, or agricultural areas.
Regions Where Certain Travel Health Risks May Be Higher
1. Sub-Saharan Africa
Many countries in sub-Saharan Africa have health considerations that travellers should discuss with a healthcare professional before departure.
Depending on the destination, travellers may face risks from diseases such as malaria, yellow fever, typhoid, hepatitis A, and other infections. Some areas may also have limited access to medical facilities.
Travel vaccines may be recommended based on the specific country and itinerary. Yellow fever vaccination is particularly important for certain destinations, and some countries have entry requirements related to yellow fever vaccination certificates.
Travellers should also consider mosquito-bite prevention, food and water precautions, and appropriate malaria prevention where indicated.
2. South and Southeast Asia
Parts of South and Southeast Asia can have increased risks of food- and water-borne illnesses, mosquito-borne diseases, and other infections.
Depending on the destination, healthcare providers may discuss protection against hepatitis A, typhoid, Japanese encephalitis, rabies, or other diseases.
The need for travel vaccination depends on the specific destination and circumstances. A short urban holiday may involve different risks from extended rural travel, outdoor activities, or visits during particular seasons.
3. Latin America and the Caribbean
Some areas of Central and South America and the Caribbean have higher risks for diseases such as hepatitis A, typhoid, yellow fever, and mosquito-borne infections.
Yellow fever vaccination may be recommended for travellers visiting certain parts of South America, while malaria prevention may be relevant for particular areas.
Because disease risks differ considerably between countries and regions, travellers should avoid assuming that the same precautions apply throughout the entire region.
4. The Middle East
Health considerations in the Middle East vary considerably by country and travel circumstances.
Travellers may need to consider routine vaccinations, hepatitis A protection, food and water safety, and other destination-specific precautions. Certain travellers may also require additional health advice depending on their planned activities or medical conditions.
For some destinations, vaccines for travel may form part of a broader pre-travel health plan rather than being the only precaution required.
Comparing Common Regional Risks
| Region | Examples of Potential Health Risks | Possible Preventive Measures |
| Sub-Saharan Africa | Malaria, yellow fever, food- and water-borne infections | Vaccination where indicated, mosquito protection, safe food and water |
| South & Southeast Asia | Hepatitis A, typhoid, Japanese encephalitis, rabies in some areas | Vaccination where appropriate, insect protection, food and water precautions |
| Latin America | Yellow fever, hepatitis A, typhoid, malaria in selected areas | Destination-specific vaccination, mosquito protection, safe food and water |
| Caribbean | Hepatitis A and other food- and water-borne or mosquito-borne infections | Vaccination where appropriate, insect protection, food and water precautions |
| Middle East | Food- and water-borne infections and other destination-specific risks | Vaccination where indicated, hygiene measures, destination-specific advice |
These are general examples rather than a complete list. Individual countries can have substantially different health recommendations.
Why Your Itinerary Matters
The country you visit is only one part of your risk assessment. Your itinerary can significantly change your potential exposure.
For example, staying at a city hotel and visiting established tourist attractions may involve different risks from:
- Camping or trekking
- Visiting remote communities
- Working in healthcare settings
- Working with animals
- Spending extended periods outdoors
- Swimming in freshwater
- Staying with local families
- Travelling for several weeks or months
Healthcare providers may therefore recommend different travel vaccines for two people travelling to the same country.
Your accommodation, activities, length of stay, and access to healthcare should all be considered before deciding which precautions are appropriate.
Are Travel Vaccines Required or Recommended?
Not every vaccination is mandatory for travel. Some are recommended to protect the traveller, while others may be required for entry into specific countries.
For example, yellow fever vaccination may be required for entry in certain circumstances, particularly when travelling from or through countries where yellow fever transmission occurs.
Other vaccinations for travel may be recommended because a traveller’s risk of exposure is higher than it would normally be at home. Common vaccines discussed during pre-travel consultations can include:
- Hepatitis A
- Hepatitis B
- Typhoid
- Yellow fever
- Japanese encephalitis
- Rabies
- Meningococcal disease
The appropriate recommendations depend on the destination, itinerary, vaccination history, age, medical conditions, and other individual factors.
When Should You Arrange Travel Health Advice?
It is best to seek travel health advice several weeks before departure. Some vaccines require multiple doses, while others may need time to provide protection.
An early consultation also gives you time to discuss malaria prevention, prescription medications, food and water safety, insect-bite prevention, and other destination-specific precautions.
Even if your trip is approaching soon, it is still worth seeking professional advice. A healthcare provider can determine which travel immunization and other measures may still be beneficial before you leave.
Other Ways to Reduce Travel-Related Health Risks
Vaccination is only one part of travel health preparation. Depending on your destination, you may also need to:
- Drink treated or bottled water where appropriate
- Practise careful food hygiene
- Use insect repellent
- Wear clothing that reduces insect exposure
- Use mosquito nets where necessary
- Avoid contact with unfamiliar animals
- Follow recommended malaria prevention
- Carry sufficient regular medication
- Consider travel insurance with appropriate medical coverage
These measures work alongside recommended travel vaccines to provide broader protection during your trip.
Frequently Asked Questions
Are all countries in a region considered high risk?
No. Health risks can vary significantly between countries and even between different areas within the same country. Your healthcare provider should assess your specific itinerary.
Do I need travel vaccines for every international trip?
No. The vaccines recommended depend on your destination, activities, health history, vaccination status, and other factors.
Can travel risks change depending on the season?
Yes. Some infectious diseases are influenced by seasonal conditions, including rainfall, temperature, and mosquito populations.
How early should I get travel vaccines?
Ideally, seek travel health advice several weeks before departure. However, consult a healthcare provider even if you are travelling soon, as some protection may still be possible.
Are travel vaccines the only protection I need?
No. Vaccination should be combined with appropriate food and water precautions, insect-bite prevention, routine vaccinations, and other destination-specific measures.
Conclusion
Higher-risk travel destinations are not limited to a specific list of countries. Certain parts of Africa, Asia, Latin America, the Caribbean, and the Middle East may have increased risks for particular infectious diseases, but the level of risk varies according to the exact destination, season, itinerary, and activities.
A pre-travel health consultation can help you understand the health considerations associated with your trip. Your healthcare provider can review your vaccination history, medical conditions, planned activities, and destination before recommending appropriate travel vaccines and other preventive measures.
Planning ahead can make it easier to complete recommended vaccinations and prepare for other health considerations before departure. If you are unsure whether your destination requires travel vaccines, speak with a qualified healthcare professional before travelling.
References
Cdc.gov. Travelers’ Health. https://wwwnc.cdc.gov/travel/destinations/list
Msdmanuals.com. Vaccines for International Travel. https://www.msdmanuals.com/home/multimedia/table/vaccines-for-international-travel
1health.nz. Do I Really Need Travel Vaccines? Risk Assessment Guide. https://www.1health.nz/do-i-really-need-travel-vaccines-risk-assessment-guide