Yellow Fever Vaccination for Peru: Requirements, Recommendations, and Practical Guidance

Peru's yellow fever (YF) policy distinguishes between entry requirements (legal mandate) and health recommendations (medical advice). Understanding both is essential for smooth travel.

Entry Requirements (Legal)

• Required if: Arriving from (or transiting >12 hrs in) a WHO-designated YF risk country. List includes: all South American Amazon basin countries (Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Panama, Paraguay, Peru itself, Suriname, Trinidad & Tobago, Venezuela) + most Sub-Saharan African nations.
• Not required if: Arriving directly from non-risk countries (USA, Canada, Europe, Australia, Asia, Chile, Argentina, Uruguay, Mexico, Caribbean non-risk islands).
• Proof: International Certificate of Vaccination or Prophylaxis (ICVP, "yellow card") showing YF vaccine ≥10 days before arrival. Digital copies accepted.
• Exemptions: Infants <9 months, medical contraindications (thymus disorder, anaphylaxis to egg/gelatin, immunosuppression). Require medical waiver letter (English/Spanish) — may face entry scrutiny.

Health Recommendations (Medical)

• CDC/WHO recommend YF vaccine for ALL travelers ≥9 months visiting:
  • Amazon regions: Loreto, Ucayali, San Martín, Madre de Dios, Amazonas
  • East Andean slopes: Junín, Pasco, Huánuco, Cusco (below 2,300 m), Ayacucho
  • Northern jungle: Cajamarca, Piura (lowlands), Tumbes
• Generally NOT recommended for:
  • Coastal desert (Lima, Trujillo, Chiclayo, Ica, Nazca)
  • High Andes (Cusco city, Puno, Arequipa, Huaraz — above 2,300 m)
  • Lake Titicaca region
• Rationale: Vaccine is live-attenuated (17D strain); rare but serious adverse events (YEL-AVD, YEL-AND) increase with age (>60) and thymus history. Risk-benefit favors vaccine only where transmission occurs.

Practical Steps

1. Check itinerary: Are you entering Amazon basin? If yes → vaccine required/recommended.
2. Timing: Vaccinate ≥10 days before entry (immunity peaks). Single dose = lifetime protection (WHO 2014).
3. Where to get it: Travel clinics, health departments, some pharmacies. Cost: $150–$350 US.
4. Carry ICVP: Physical card + photo on phone. Peru checks at land borders (Brazil, Bolivia, Ecuador) and jungle airports (Iquitos, Pucallpa, Puerto Maldonado).
5. Other vaccines: Hep A, Typhoid, routine (MMR, Tdap). Malaria prophylaxis for Amazon (doxycycline, atovaquone-proguanil).

Special Cases

• Transiting Lima only: No YF risk; no vaccine needed for connection.
• Cruise ships: If port call in risk country (e.g., Manaus, Brazil), vaccine required even if not disembarking.
• Long-term residents: Peru doesn't require YF for residency, but recommends if living in/visiting risk zones.

Bottom Line

Going to Machu Picchu (Cusco 3,400 m) or Lima? No YF vaccine needed. Going to Iquitos, Puerto Maldonado, or Manu? Vaccine required for entry, recommended for health. Check CDC Travelers' Health Peru page before departure—country designations update.