Travel health planning

Overview

Travel health planning means getting ready for your trip to stay healthy and safe. It involves checking for any health risks at your destination, getting the right vaccinations (shots that protect against diseases), and knowing what to do if you get sick while away.

Yes, millions of people travel abroad each year, and a significant number experience some health issue – from mild stomach upset to more serious infections. But with careful planning, most problems can be avoided.

Anyone who travels internationally, especially to countries with different climates, sanitation, or diseases. People with existing health conditions, pregnant women, young children, and older adults may need extra precautions.

Symptoms

Common symptoms

• Diarrhoea (loose, watery stools) and stomach cramps
• Nausea or vomiting
• Fever and chills
• Headache or body aches
• Skin rash or itching

Symptoms in children

• Persistent diarrhoea leading to dehydration (dry mouth, sunken eyes, no tears)
• High fever that does not come down with simple measures
• Refusing to drink or eat
• Unusual sleepiness or irritability

Symptoms in older adults

• Confusion or change in mental state (may be a sign of infection or dehydration)
• Severe weakness or dizziness upon standing
• Shortness of breath with mild activity
• Fever above 38°C (100.4°F)

Causes

Main causes

• Contaminated food or water (common cause of travellers' diarrhoea)
• Insect bites (mosquitoes, ticks, sandflies) that transmit diseases like malaria or dengue
• Poor hygiene, such as not washing hands before eating
• Close contact with sick people in crowded places (e.g., planes, markets)
• Changes in altitude, temperature, or humidity causing altitude sickness or heatstroke

Risk factors

• Travel to rural or remote areas with limited medical facilities
• Lack of recommended vaccinations before travel
• Staying with friends or family (may be less cautious about food and water)
• Weakened immune system due to illness or medication
• Extended travel (longer than 2 weeks) in high-risk areas

When to see a doctor

See a doctor urgently if:

• If you develop severe symptoms while travelling – such as high fever, severe abdominal pain, or bloody diarrhoea – seek help at a local medical facility immediately.
• If you think you have been bitten by an animal (dog, bat, monkey) and the area is a risk for rabies, get emergency medical care.

Book a routine appointment if:

• Visit your doctor or a travel health clinic 4–6 weeks before your trip to discuss your itinerary and any needed vaccinations or medicines.
• Book an appointment if you have a chronic condition (like diabetes or asthma) and need help managing it during travel.

Diagnosis

If you become ill during or after travel, your doctor will ask about your travel history, symptoms, and exposures. They may perform a physical exam and order specific tests based on what they suspect.

Tests that may be done

• Stool sample to look for bacteria, parasites, or viruses,
• Blood tests to check for infections like malaria or dengue,
• Rapid antigen or PCR tests for specific diseases (e.g., COVID-19, typhoid),
• Urine test if a urinary tract infection is suspected.

What to expect at your appointment

The doctor will explain the likely cause of your symptoms and recommend treatment. You may be asked to provide a sample (stool, blood, or urine) and return for results. In many cases, treatment can start before the exact cause is confirmed.

Treatment

Treatment depends on the specific illness. Most travel-related infections are mild and can be managed with self-care. More serious conditions may require prescription medicine, fluids, or sometimes hospital care.

Self-care at home

• Drink plenty of clean, bottled water to prevent dehydration.
• Use oral rehydration salts (available at pharmacies) for diarrhoea.
• Rest as much as possible.
• For fever and aches, take paracetamol (check that it is safe for you).
• Avoid street food and tap water until you feel better.

Medical treatments

For bacterial infections, doctors may prescribe antibiotics. For malaria, specific antimalarial medicines are available. Some viral infections do not have specific treatments and are managed with supportive care. Always follow your doctor's advice and complete the full course of any prescribed medicine.

Living with this condition

While travelling, adjust your daily routine to include safe food and water habits: drink only bottled or boiled water, avoid ice cubes, and eat thoroughly cooked food. Use mosquito nets and repellent if mosquitoes are common. Keep a small first-aid kit with basics like plasters, antiseptic, and any personal medicines.

Lifestyle tips

• Wash your hands frequently with soap and clean water, or use hand sanitiser.
• Avoid swimming in fresh water (lakes, rivers) in areas where schistosomiasis (a parasitic disease) is present.
• Wear long sleeves and pants at dawn and dusk to prevent insect bites.
• Use sunscreen to protect your skin from strong sun.

Diet and exercise

Eat well-cooked meals from reputable places. Stick to fruits you can peel yourself. Stay hydrated – but only with safe water. Light exercise like walking can help with jet lag and keep your energy up, but avoid strenuous activity in extreme heat.

Mental health and emotional wellbeing

Travelling can be exciting but also stressful. Language barriers, culture shock, or feeling unsafe can cause anxiety or low mood. It’s normal to feel homesick. Talk to fellow travellers or locals, keep a journal, and take time to relax. If you feel overwhelmed, reach out to a mental health support service or call a helpline.

Prevention

Yes, many travel-related illnesses can be prevented with proper planning. The most important steps are getting recommended vaccinations, protecting against insect bites, and being careful about food and water.

Vaccines

Several vaccines are available for travel, including those for hepatitis A, typhoid, yellow fever, and rabies. A travel health advisor can tell you which ones you need based on your destination, length of stay, and activities. Some vaccines require multiple doses, so start planning early.

Screening programmes

Before travel, some people may benefit from a blood test to check immunity to diseases like hepatitis B or measles. After travel, screening may be recommended if you were exposed to certain diseases like tuberculosis. Your doctor can advise based on your itinerary.

Complications

If left untreated

• Severe dehydration from diarrhoea or vomiting, requiring hospital fluids.
• Organ damage from infections like malaria or severe dengue.
• Long-term digestive problems following some bacterial infections.
• Chronic fatigue or joint pain after certain viral infections.

Long-term outlook

The vast majority of people who get sick while travelling recover fully with simple care or treatment. With good planning and prompt medical attention when needed, you can enjoy your trip and return home healthy.

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