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Bhutan

South Asia · Asia · Physician brief

📝Draft — pending physician review
📝Draft — pending physician review. This brief was compiled from CDC, WHO, and EKRM/HealthyTravel sources (June 2026) and has not yet been verified by a clinician. Confirm specifics with a travel-medicine professional before relying on it.

Altitude — acute mountain sickness on high routes

Much of Bhutan lies at altitude, and treks and road passes routinely exceed 3,000 m. Ascend gradually, allow time to acclimatize, and recognize symptoms of acute mountain sickness (headache, nausea, sleep disturbance). Discuss preventive measures and standby medication (e.g. acetazolamide) with your travel medicine specialist before a high-altitude trek.

EKRM / CDC ↗ · Updated 2026

Yellow fever — certificate only if arriving from a risk country

There is no yellow fever risk in Bhutan. A YF vaccination certificate is required only for travelers arriving from a country with risk of YF transmission. Direct travel from Switzerland is not affected.

CDC / WHO ↗ · Updated 2026

Malaria

Low

Dengue

Low

Yellow fever

None

Chikungunya

Low

Vaccines

VaccineRecommendationReference
Routine vaccines

Make sure you are up-to-date on all routine vaccines before every trip — per the Swiss BAG schedule. These include:

BAG Impfplan
Hepatitis A

Recommended for all travelers from one year of age. Note for Swiss travelers: Hepatitis A is not part of the routine Swiss BAG childhood schedule, so most adult travelers will need vaccination.

CDC Yellow Book
Hepatitis B

Consider per individual risk and stay duration. Routine in the Swiss childhood schedule since 1998 — younger travelers are usually covered.

CDC Yellow Book
Japanese encephalitis

Consider for travelers spending extended time (typically a month or more, or shorter with high-risk rural exposure) in the southern agricultural lowlands during transmission season. Not needed for the high-altitude cultural circuit.

—
Rabies

Particularly recommended for long stays, treks and travel to areas with limited access to post-exposure care, cyclists, infants and children, and those working with animals. Stray dogs are the main rabies vector.

CDC Yellow Book
Typhoid

Recommended for most travelers, and particularly for those staying with friends and relatives, in rural areas, or for longer stays.

CDC Yellow Book

Disease-specific guidance

Malaria

Low

Risk is limited to rare cases in the southern border belt below about 1,700 m — the districts of Chukha, Dagana, Pemagatshel, Samdrup Jongkhar, Samtse, Sarpang and Zhemgang. Because risk to travelers is low, CDC advises mosquito-avoidance measures only (no chemoprophylaxis) for typical itineraries; standby treatment may be discussed for prolonged rural stays in the southern belt. The high valleys and main cultural circuit (Thimphu, Paro, Punakha) are malaria-free.

Where
Southern border belt below ~1,700 m (7 districts)
No risk
High valleys: Thimphu, Paro, Punakha
Species
Mostly P. vivax; some P. falciparum (chloroquine-resistant)
Prevention
Mosquito avoidance only for most travelers

Yellow fever

None

No yellow fever risk in Bhutan. A YF certificate is required only for travelers arriving from a country with risk of YF transmission. Direct travel from Switzerland is not affected.

Dengue

Low

Dengue transmission occurs in the warmer southern lowlands, with seasonal activity around the monsoon. Higher-altitude areas have little to no risk. Daytime mosquito-bite prevention is the main protection where risk exists.

Distribution
Southern lowlands; minimal at altitude
Season
Mainly monsoon and post-monsoon months
Mosquito
Aedes aegypti — bites during daytime

General prevention

Food & water

Traveler's diarrhea, typhoid, and hepatitis A are the main concerns. Use bottled or properly treated water, avoid ice from unverified sources, and favor thoroughly cooked food and fruit you peel yourself — particularly outside established hotels and on treks.

Mosquito protection

Mosquito-borne risk is low and confined to the warmer southern lowlands. There, use daytime protection (DEET or picaridin repellent, long sleeves) against dengue and at dawn/dusk against Japanese encephalitis, plus malaria bite protection. The high valleys and main cultural circuit have little to no mosquito-borne risk.

Sources

Based on CDC Travelers’ Health, CDC Yellow Book, and the Swiss Federal Vaccination Schedule (BAG). Always verify current recommendations before travel.

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This brief is for informational purposes and does not replace personalized medical advice.
Consult a travel medicine specialist 4–8 weeks before departure.