Travelling with Young Children: A Canadian Parent's Vaccine and Medication Guide

Kids change the calculus

Adults can pick up most travel illnesses and recover in a hotel room with a thermometer and some electrolyte packets. Children — especially under five — cannot. Dehydration from traveller’s diarrhea becomes a medical emergency faster. Malaria can be life-threatening within hours. Even minor illnesses derail a trip and require medical attention abroad, where quality varies enormously.

That’s why pre-travel planning matters more for families, not less. Below is a practical age-by-age guide for Canadian parents travelling internationally with young children.

Age-by-age vaccine considerations

Under 6 months

• Most travel vaccines are contraindicated. Yellow fever, oral typhoid, MMR, varicella, and several others cannot be given.
• Focus is on avoiding high-risk destinations, rigorous mosquito-bite prevention, and ensuring the parents are well-vaccinated (infants depend on herd protection and mom’s antibodies via breastfeeding).
• Avoid yellow-fever-endemic countries if at all possible. Infants under 9 months cannot receive the vaccine and are at high risk of vaccine-associated adverse events if accidentally vaccinated.

6–11 months

• Measles vaccine (given as MMR) can be given early if travelling to regions with active measles transmission — which is much of the world right now. This dose doesn’t count toward the routine series; your child still needs the standard doses at 12 months and 4–6 years.
• Hepatitis A can be given from 6 months in travel situations.
• Japanese encephalitis can be considered from 2 months for high-risk rural travel.
• Yellow fever remains contraindicated.

12 months to 2 years

• Ensure the routine Canadian immunization schedule is up to date — MMR, varicella, DTaP-IPV-Hib, Hepatitis B, pneumococcal, meningococcal C, rotavirus are critical.
• Hepatitis A is recommended for all international travel outside low-risk countries.
• Typhoid injectable is not licensed under age 2; the oral form not under age 6.
• Yellow fever can be given from 9 months (standard) or considered from 6–8 months in specific high-risk situations.
• Rabies pre-exposure should be considered for long-stay travel — children are higher-risk because they pet stray animals.

2–6 years

• Most travel vaccines are now available at age-appropriate doses.
• Typhoid injectable is now available.
• Rabies pre-exposure should be considered more strongly — kids this age are even more prone to animal interactions.
• Malaria prophylaxis drug choice matters: atovaquone-proguanil can be given from 5 kg body weight; doxycycline is contraindicated under 8; mefloquine can be used with caution.

6+ years

• Oral typhoid (Vivotif) becomes an option.
• Most adult travel vaccines and medications are available at appropriate paediatric doses.
• Doxycycline for malaria prophylaxis becomes an option from age 8.

Malaria prevention in children

Malaria kills more children globally than any other vaccine-preventable or prophylaxable travel illness. Canadian children travelling to malaria-endemic areas need both prophylactic medication and rigorous mosquito protection.

Medication options by age

• Atovaquone-proguanil (Malarone paediatric): first-line in most cases, usable from 5 kg body weight. Dosing is weight-based.
• Chloroquine: still usable in chloroquine-sensitive areas (very limited now).
• Mefloquine: can be used from 5 kg but neuropsychiatric adverse events occur — avoid in children with a history of seizures or sleep disturbances.
• Doxycycline: contraindicated under 8 years due to permanent tooth staining.

Mosquito protection

• DEET up to 30% is safe for children over 2 months. Apply sparingly and wash off when indoors.
• Picaridin is an equally effective alternative with less skin irritation.
• Permethrin-treated clothing for older toddlers and children is highly effective.
• Bed nets (permethrin-treated) are essential for infants and young children.
• Dress children in long sleeves and long pants at dawn and dusk.

Traveller’s diarrhea: the #1 family trip-ruiner

Diarrhea-related dehydration is the leading medical issue for travelling children. It escalates fast: a toddler can go from mild symptoms to serious dehydration within hours.

Pack list for families

• Oral rehydration salts (ORS) — the most important single item. Multiple packets in checked AND carry-on bags.
• Antibiotic standby — our physician can prescribe an age-appropriate antibiotic (typically azithromycin liquid for kids) for severe diarrhea.
• Probiotics (optional, some evidence of benefit).
• Infant formula or breastfeeding remains essential — keep feeding through mild illness.
• Avoid anti-motility drugs (loperamide) in young children — generally not recommended under age 12 without medical guidance.

Food and water rules

• Only bottled, boiled, or properly filtered water — including for brushing teeth.
• No ice.
• No raw produce you haven’t washed and peeled yourself.
• Fully cooked, hot foods only; avoid buffets that sit out.
• No unpasteurized dairy.

Medication kit for families

A typical family medical kit for international travel includes:

• Children’s acetaminophen (Tylenol) and ibuprofen (Advil) in liquid form, with appropriate measuring devices
• Oral rehydration salts — multiple packets
• Thermometer
• Hydrocortisone cream for bug bites
• Antihistamine (age-appropriate) for allergic reactions
• Antibiotic eye drops (prescription)
• Standby antibiotic for severe diarrhea (prescription)
• Sunscreen SPF 30+ (mineral-based for young skin)
• DEET or picaridin insect repellent
• Adhesive bandages in multiple sizes
• Any daily medications plus extras

Practical tips from our paediatric travel consults

• Jet lag: Kids under 5 often adjust faster than adults. Start shifting bedtimes a few days before departure. Melatonin is not recommended for most young children without medical guidance.
• Ear pain during descent: Feed or let kids suck on a pacifier or drink during takeoff and landing.
• Altitude: Children express altitude sickness differently — fussiness, poor feeding, and sleep disturbance may be the only signs. Diamox dosing is weight-based; our physician will prescribe carefully.
• Sun: Children burn faster and can develop heat stroke quickly. Carry hats, sunscreen, and insist on shade during midday in tropical climates.
• Documentation: Carry a physician letter summarizing the medical plan if crossing borders with prescription medications.

Insurance and evacuation

Travel health insurance for families must specifically cover:

• Paediatric emergencies
• Medical evacuation (especially important in remote destinations)
• Pre-existing conditions if your child has any
• Coverage amounts appropriate to the destination (rural areas in developing countries may require air evacuation)

Review the policy carefully — many cheap policies exclude common scenarios.

Book a family consultation

Every family trip is different. Children travel with different routine vaccine statuses, different medical histories, and different destinations — and the plan for a 3-year-old heading to Mexico is not the plan for a 6-month-old and a 4-year-old heading to India.

Our physicians at Virtual Travel Clinic handle family consultations routinely. We review routine vaccine status for every child, build age-appropriate travel vaccine and medication plans, and dispense everything at our Toronto pharmacy — including liquid and paediatric formulations. Book a consultation and let us build your family’s travel plan.