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Travel health · sourced from ITM Antwerp

United States

The vaccines usually advised for United States when departing from Belgium, with the lead times to respect, based on the Institute of Tropical Medicine Antwerp (ITM).

Yellow feverNot requiredMalariaNo risk
emmunity editorial team · sourced & datedLast updated 17 August 2026

Overview

The United States needs no vaccine to enter from Belgium and is malaria-free. The country is vast: mosquito-related risks (dengue, chikungunya) concentrate in the south and south-east and in Hawaii, while ticks (Lyme disease) and altitude are things to watch elsewhere depending on the region visited.

Recommended vaccines

VaccineCategoryWhen
Diphtheria-tetanus-pertussis (DTPa)Recommendedkeep the booster current (every 10 years)
PolioRecommendedbooster for 16+ to Asia/Africa; sometimes compulsory (long stays)
Measles-mumps-rubella (MMR)Recommendedbe up to date (2 doses) before departure
Hepatitis BConsiderstart early (multi-week schedule)

Other health risks

Dengue
Dengue occurs in the southern and south-eastern states and in Hawaii; protect against mosquito bites.
Chikungunya
Chikungunya can also be transmitted by mosquitoes.
Chagas disease
Chagas disease is present in the south of the country.
West Nile virus
West Nile virus is present; protect against mosquito bites.
Lyme disease
Ticks can transmit Lyme disease in affected areas; cover up and check for ticks after outdoor activity.
Altitude sickness
Altitude sickness is possible above about 2,500 m.

Prepare your trip

8 weeks
Book a travel clinic
10 days
Yellow fever (if required)
Departure
Certificates & reminders ready

Leaving in under 2 weeks? Still book a clinic: a first hepatitis A dose already protects, and yellow fever needs at least 10 days. A travel clinic will prioritise what fits your timeline.

Frequently asked questions

Is any vaccine required for United States?

No vaccine is required for entry. The vaccines on this page are recommended, not required.

Is there a malaria risk?

Malaria: no risk.

How far ahead of departure should I start?

Ideally 6 to 8 weeks before departure, to complete multi-dose schedules. Yellow fever, where it applies, must be given at least 10 days before arrival.

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Our sources

Last updated 17 August 2026

Indicative information for a typical traveller, not medical advice. What you need depends on your itinerary, region, season and duration. See an approved travel clinic 6–8 weeks before departure: only they can give yellow fever and issue the certificate.

Entry formalities: see FPS Foreign Affairs ↗

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