What parents need to know about vaccinating children for overseas travel.
Children are more vulnerable to many travel-related illnesses. Their immune systems are still developing, and they're more susceptible to dehydration from diarrhoeal diseases, more attractive to mosquitoes, and more likely to have close contact with animals (increasing rabies risk). Planning and prevention are essential.
Not all vaccines are suitable for young children. Key age restrictions include:
Yellow Fever: Not recommended under 9 months of age. Caution advised for infants 6-9 months — only in exceptional circumstances.
Typhoid injection: From 2 years of age. Oral typhoid from 6 years.
Japanese Encephalitis: From 2 months of age (depending on brand).
Rabies: No minimum age, but discuss with your doctor.
Hepatitis A: From 12 months (though can be given earlier in high-risk situations).
Malaria prophylaxis: Doxycycline not suitable under 8 years. Malarone and mefloquine can be used in younger children — dosage is weight-based.
Check your child's immunisation schedule on the Australian Immunisation Register. Some routine vaccines (like MMR) may be given earlier than the standard schedule if travelling to a high-risk area. Discuss with your doctor.
Carry oral rehydration sachets — dehydration from gastro is the biggest practical risk. Use DEET-based repellent suitable for children (20-30% concentration for kids over 3 months). Dress children in long sleeves and pants at dusk in mosquito areas. Bring familiar medications (paracetamol, antihistamines) as brands may differ overseas. Consider malaria-free or low-risk destinations for first overseas trips with very young children.
Book your family's travel health appointment early — at least 8 weeks before departure. Some childhood travel vaccines require multiple doses, and scheduling these around existing routine vaccination schedules takes planning. Bring each child's immunisation history to the appointment.
Many travel vaccines have minimum age restrictions because the immune response in younger children is less reliable, or because the disease pattern in young children differs. The Australian Immunisation Handbook lists the following typical minimums:
For unaccompanied minors travelling internationally, vaccinations must be administered with parental or guardian consent, and the child must understand and assent at an age-appropriate level. The travel-health clinician will document consent and provide a vaccination record that may be required by airlines, visa authorities, or accompanying adults at the destination.
Children can receive multiple vaccines in a single visit — this is routine practice in the National Immunisation Program. The Australian Immunisation Handbook supports same-day administration of all required travel vaccines for children, with the caveat that live vaccines (MMR, varicella, Yellow Fever, oral typhoid) are either given on the same day or separated by at least 4 weeks.
Practical considerations:
Malaria is particularly dangerous in young children — they progress to severe disease faster than adults. Antimalarial prophylaxis options for children depend on weight and age:
Children dehydrate faster than adults. Pack oral rehydration salts (ORS) for any tropical or developing-country travel and have a clear plan for fluid management. For children under 1, breastfeeding (if applicable) is the best fluid replacement. ORS should be reconstituted with bottled or boiled water.
Children are more likely than adults to interact with stray animals (dogs, monkeys, cats) and less likely to report a bite or scratch. Pre-exposure rabies vaccination should be strongly considered for children travelling to high-risk areas (most of Asia, much of Africa, parts of Latin America), especially for trips longer than 2–3 weeks.
Children acclimatise to altitude similarly to adults but are less able to recognise and report symptoms of acute mountain sickness. Travel above 2,500m with young children warrants particular caution; sleeping altitudes above 3,000m are generally not recommended for children under 8 years without specialist advice.
Travel vaccinations are an opportunity to catch up on routine adolescent vaccinations that may have been missed (HPV, dTpa booster, meningococcal). Discuss this with the clinician — combining travel and routine vaccinations can be more efficient and saves a separate appointment.
Travel during the school year may disrupt the routine immunisation schedule (particularly the school-based dTpa and HPV programs in Year 7, and meningococcal ACWY in Year 10). Catch-up vaccinations through your GP or council immunisation service after return are usually straightforward — the Australian Immunisation Register tracks coverage and your GP can identify any missed doses.
Last updated: May 2026