Guinea-Bissau Travel Health Guide for US Travelers
A physician-reviewed health and safety guide for Americans traveling to the Republic of Guinea-Bissau
As of early 2026, the U.S. Department of State advises Americans to Exercise Increased Caution in Guinea-Bissau due to crime, civil unrest, and disease. Guinea-Bissau is one of the world's poorest countries and has experienced multiple coups. Drug trafficking is endemic and has destabilized government institutions. Healthcare is essentially non-existent outside the capital. Always check the latest advisory at travel.state.gov before departing.
Republic of Guinea-Bissau
Capital: Bissau | Region: West Africa | Language: Portuguese / Creole
Before You Travel to Guinea-Bissau
Guinea-Bissau is one of the world's least-visited and least-developed countries — a small West African nation of coastal lowlands, mangroves, and the stunning Bijagós Archipelago. Travelers are almost exclusively humanitarian workers, researchers, and intrepid independent adventurers. Guinea-Bissau poses very significant health challenges: yellow fever vaccination is mandatory, malaria is endemic and intense, healthcare is virtually absent outside Bissau, and the country is a known transit hub for South American cocaine, contributing to government corruption and crime. Travel requires comprehensive advance preparation. See a physician at least 6–8 weeks before departure.
Visit a Travel Clinic — Urgent
See a travel medicine physician 6–8 weeks before departure. Yellow fever vaccination is mandatory. Malaria prophylaxis is essential. Multiple vaccines are recommended. Bring your full immunization record.
Get Travel Insurance
Medical evacuation insurance is absolutely essential — there is no viable medical care for serious illness in Guinea-Bissau. Evacuation to Dakar, Senegal (approximately 1 hour by air) or Abidjan is the only realistic option. This can cost $100,000+ USD without insurance.
Documents & Registration
Enroll in STEP at step.state.gov. US citizens require a visa for Guinea-Bissau. The US does not have an Embassy in Guinea-Bissau — US interests are handled by the US Embassy in Dakar, Senegal. This is a critical consideration for emergency assistance.
Pack a Comprehensive Medical Kit
Bring all medications, DEET repellent (≥50%), permethrin-treated mosquito net, oral rehydration salts, a broad-spectrum antibiotic, water purification equipment, a thermometer, sterile needles and syringes, and basic wound care supplies. Assume nothing will be available locally.
Water & Food Safety
Tap water is not safe anywhere in Guinea-Bissau. Purify all water. Sealed bottled water may be available in Bissau but is unreliable outside the capital. Use water purification tablets or a SteriPen for all water. Eat only thoroughly cooked food from known sources.
Cash & Payments
The West African CFA Franc (XOF) is the local currency. Guinea-Bissau is effectively a cash-only economy. Credit cards are accepted at almost no establishments. Bring sufficient cash in euros or US dollars to cover your entire stay. ATMs exist in Bissau but are unreliable — do not depend on them.
Yellow Fever in Guinea-Bissau
About Yellow Fever in Guinea-Bissau
Yellow fever is a mosquito-borne hemorrhagic viral disease endemic in West Africa. Guinea-Bissau is classified as a risk country. The yellow fever vaccine is highly effective and provides lifelong protection with a single dose. Get vaccinated at a licensed vaccination center at least 10 days before arrival — the certificate is valid from 10 days after first vaccination.
Malaria in Guinea-Bissau
Atovaquone-Proguanil (Malarone) — Preferred
One tablet daily, starting 1–2 days before entry, throughout stay, and for 7 days after leaving. First-line choice for most travelers. Well-tolerated and highly effective. Requires a prescription.
Doxycycline
100mg once daily, starting 1–2 days before entry and continuing 28 days after leaving. Good option for longer stays. Causes photosensitivity — use sunscreen diligently. Not suitable for pregnant women or children under 8.
Mefloquine (Lariam)
Weekly dosing — must begin 2–3 weeks before travel. Not first-line due to neuropsychiatric side effects in some individuals. May be considered after discussion with your travel physician. Always start well before departure.
In Guinea-Bissau, any fever must be treated as malaria until proven otherwise. If you develop fever, chills, or flu-like symptoms during or after your visit, seek medical care immediately and declare your travel history. Given the extremely limited healthcare infrastructure, consider carrying a rapid malaria diagnostic test kit and emergency malaria treatment (artemether-lumefantrine) after discussion with your doctor. Do not take chloroquine — resistance is widespread.
Recommended Vaccines for Guinea-Bissau
Yellow fever vaccination is required for entry. The following additional vaccines are strongly recommended — see your doctor at least 6–8 weeks before departure.
Mandatory for all travelers ≥1 year old. Licensed vaccination center. Get vaccinated at least 10 days before departure. Keep yellow card with passport at all times.
Both strongly recommended for all travelers — very high risk from contaminated food and water throughout Guinea-Bissau. Two-dose hepatitis A series and typhoid vaccination are essential components of pre-travel preparation.
Meningococcal Vaccine (MenACWY)
Guinea-Bissau lies within the African Meningitis Belt. Outbreaks of bacterial meningitis occur, particularly during dry season (November–June). MenACWY quadrivalent vaccine is recommended for all travelers.
Rabies is endemic. Rabies immune globulin is essentially impossible to obtain in Guinea-Bissau. Pre-exposure vaccination is critical for anyone who might be bitten by an animal — without it, post-exposure treatment cannot be effectively completed locally.
Recommended for all travelers — blood supply safety cannot be guaranteed and sterile medical equipment is not reliably available. Three-dose series provides long-term protection.
MMR, Tdap, Polio Booster, Influenza, COVID-19
All routine vaccinations must be fully current. An adult polio booster is specifically recommended for West Africa travel.
Healthcare System in Guinea-Bissau
In Bissau
Bissau has some small private clinics used by the NGO and diplomatic community that offer marginally better care than the public system. Even these facilities are very limited and would manage only minor stabilization before evacuation. Most NGOs and diplomatic missions maintain their own medical evacuation plans — follow the same approach.
Bijagós Archipelago & Rural Areas
The Bijagós islands are completely without medical facilities of any kind. Any medical emergency on the archipelago requires sea or air evacuation to Bissau, followed by air evacuation to Dakar. This process can take many hours — a delay that can be fatal in the case of severe malaria or trauma. Do not visit the islands without a clear evacuation plan.
Evacuation to Dakar
Medical evacuation destination of choice from Guinea-Bissau is Dakar, Senegal (approximately 1 hour flight). Dakar has the best medical facilities in the sub-region. International SOS and Global Rescue maintain regional evacuation capacity. Always have your evacuation provider's 24-hour emergency number saved and accessible.
Emergency Numbers in Guinea-Bissau
There is no US Embassy or Consulate in Guinea-Bissau. American citizens in distress must contact the US Embassy in Dakar, Senegal (+221 33 879-4000) or the State Department's 24-hour emergency line (+1-888-407-4747). Response capacity for Americans in Guinea-Bissau is very limited — this makes STEP enrollment and personal emergency planning even more critical.
US Embassy Dakar, Senegal (serves Guinea-Bissau)
Route des Almadies, Dakar, Senegal
Phone: +221 33 879-4000
After-hours emergencies: +221 33 879-4000
sn.usembassy.gov
US State Dept 24/7 Hotline
From US/Canada: +1-888-407-4747
From abroad: +1-202-501-4444
Available 24 hours. Primary first contact given limited Embassy access in Guinea-Bissau.
STEP Enrollment
Register at step.state.gov before departure. Critical in Guinea-Bissau — the absence of a local US Embassy makes STEP registration your primary mechanism for consular contact in an emergency.
Nature & Weather Risks
Extreme Heat & Humidity
Guinea-Bissau's coastal lowlands are extremely hot and humid year-round. Temperatures regularly exceed 35°C (95°F). The combination of heat, humidity, and physical exertion makes heat exhaustion and dehydration major risks. Drink 3–4 liters of water daily and avoid outdoor activity during midday heat (11am–3pm).
Rainy Season Flooding
The rainy season (June–October) brings very heavy rainfall that floods roads and makes many areas inaccessible, including parts of the Bijagós Archipelago. Road travel becomes extremely difficult. The rainy season also intensifies malaria transmission. Plan travel during the dry season (November–May) when possible.
Ocean & River Hazards
Guinea-Bissau's coastline and river networks have strong currents, hidden sandbanks, and tidal fluctuations. Boat travel (the primary means of reaching the Bijagós islands) carries risk — boats are often overloaded and in poor condition. Never board an overcrowded vessel. Check weather conditions before any sea crossing.
Road Conditions
Roads in Guinea-Bissau are among the poorest in West Africa — largely unpaved, potholed, and without markings. Road accidents are common. Avoid all road travel after dark. Use four-wheel drive vehicles for any travel outside Bissau. Be prepared for roads to become completely impassable during rainy season.
Crime, Violence & Safety Risks
Political Instability
Guinea-Bissau has experienced multiple coups and attempted coups. The political situation can deteriorate rapidly and without warning. Avoid government buildings and large gatherings. Monitor STEP alerts and maintain a shelter-in-place capability at your accommodation. Have a clear emergency evacuation plan to Dakar.
Crime & Theft
Armed robbery, petty theft, and opportunistic crime targeting foreigners occur in Bissau. Maintain a very low profile. Do not display electronics, cameras, or valuables. Travel in groups when possible. Avoid poorly lit areas after dark. Keep vehicle doors locked and windows up while driving in the city.
Photography Restrictions
Photography near government buildings, military installations, police facilities, and the port is prohibited and enforced. Equipment confiscation and detention are documented. Ask explicit permission before photographing any official building or uniformed personnel.
Personal Safety Planning
Establish daily check-in protocols with contacts outside Guinea-Bissau. Know the contact details for the US Embassy in Dakar. Keep your passport, essential documents, and emergency funds accessible at all times. Have at least two exit routes from the country identified (Conakry, Dakar). Know the flight schedule from Osvaldo Vieira Airport in Bissau.
Other Health Risks in Guinea-Bissau
Cholera & Enteric Disease
Cholera outbreaks occur regularly, particularly during rainy season when flooding contaminates water supplies. Typhoid and dysentery are endemic. Safe water and food hygiene are critical. Purify all water. Carry oral rehydration salts. Seek immediate medical advice for any severe diarrheal illness.
Schistosomiasis
Present in freshwater rivers and estuaries. Do not wade, swim, or bathe in any freshwater body. The country's extensive mangrove waterways and river systems all carry risk. Seawater and treated pools are safe. Schistosomiasis is treatable but can cause serious complications if undiagnosed.
Present and causes outbreaks in Guinea-Bissau. Transmitted by daytime-biting Aedes mosquitoes. Use DEET repellent throughout the day — the same repellent that protects against malaria at night also prevents dengue during the day when applied consistently.
HIV prevalence is significant in Guinea-Bissau. Practice safe sex consistently. Ensure sterile equipment is used for any medical procedures. Bring an adequate supply of any relevant medications — availability in Guinea-Bissau is extremely limited.
Pre-Departure Checklist for Guinea-Bissau
- Get Yellow Fever vaccine at a licensed center — mandatory for entry. Carry yellow card.
- Get antimalarial prophylaxis — Malarone (preferred) or Doxycycline — take on schedule without fail
- Get Hepatitis A, Typhoid, Meningococcal (MenACWY), Rabies, Hepatitis B vaccines
- Update MMR, Tdap, Polio, Flu, COVID-19
- Purchase medical evacuation insurance — contact International SOS or Global Rescue for West Africa coverage
- Note: There is no US Embassy in Guinea-Bissau — US Embassy Dakar serves: +221 33 879-4000
- Enroll in STEP at step.state.gov — critical given no local Embassy
- Save emergency numbers: Police 119 | Fire 118 | US Embassy Dakar +221 33 879-4000 | State Dept +1-888-407-4747
- Pack DEET (≥50%), permethrin-treated net, sterile needles/syringes, water purification, ORS, standby antibiotic, rapid malaria test kit
- Bring sufficient cash (euros or USD) — credit cards will not work
- Do not swim in any freshwater rivers, estuaries, or mangrove channels
- Do not travel by road after dark
- Establish daily check-in with contacts outside Guinea-Bissau
- Have two exit routes planned — Dakar (Senegal) and Conakry (Guinea)
