Pre-Travel Vaccinations for Developing Countries

Essential Routine Vaccinations

The American College of Physicians recommends ensuring immunity to Measles-Mumps-Rubella (MMR) before travel, as approximately 61% of imported measles cases occur among returning citizens, with measles remaining uncontrolled in many countries 1
The Centers for Disease Control and Prevention (CDC) suggests reviewing and updating Tetanus-Diphtheria-Pertussis (Tdap) as needed 1
Travelers to developing countries should be immune to Poliomyelitis; the World Health Organization (WHO) recommends using inactivated (killed) poliovirus vaccine rather than oral live vaccine 2, 1
The CDC recommends Influenza vaccination, particularly for high-risk individuals 1

The American Gastroenterological Association recommends Hepatitis A vaccination for most travelers to developing countries due to risk of foodborne and waterborne exposure 3, 1
The CDC recommends completing the normal two-dose schedule of Hepatitis A vaccine preferably before travel 3
For immunosuppressed patients, the European Association for the Study of the Liver recommends checking serological response after Hepatitis A vaccination 3

The WHO recommends Yellow Fever vaccination for travelers to certain African and South American countries where transmission is endemic 4, 5
The CDC recommends that Yellow Fever vaccine be administered at approved Yellow Fever Vaccination Center at least 10 days before travel 5, 6
The WHO states that a single dose of Yellow Fever vaccine provides long-lasting immunity; boosters are no longer required for most individuals 5
The CDC recommends Typhoid Fever vaccination for travelers visiting smaller cities, rural areas, or those with "adventurous eating" 1, 6
The WHO recommends using inactivated parenteral vaccine instead of live-attenuated oral preparation for immunosuppressed patients 2
The CDC recommends Hepatitis B vaccination for travelers who may have sexual contact with new partners, receive medical/dental treatment, or have potential blood/bodily fluid exposure 1, 6

The CDC recommends that immunosuppressed patients avoid live-virus vaccines (oral polio, oral typhoid, yellow fever in severely immunosuppressed) 2
The WHO recommends using inactivated vaccines (killed polio, parenteral typhoid, inactivated hepatitis A/B, rabies, Japanese encephalitis) for immunosuppressed patients as for non-immunosuppressed persons 2
The CDC recommends that pregnant women generally avoid live virus vaccines like yellow fever 6
The WHO states that seroconversion rate may be markedly reduced in pregnant women; consider serologic testing to confirm immune response 4, 7

The CDC recommends starting vaccinations 4-6 weeks before departure to ensure adequate time for all necessary doses and immune response 1, 6
The WHO states that multiple vaccines can be administered simultaneously without reducing effectiveness 6
The CDC recommends that yellow fever certificate is valid only if administered by approved vaccination center 4, 8, 6

The CDC warns that insufficient lead time is the most common error; failing to start vaccinations early enough 1, 6
The WHO recommends not neglecting routine vaccinations; many travelers focus only on travel-specific vaccines but fail to update routine immunizations 1
The CDC warns that using live vaccines in immunosuppressed patients can cause serious complications 2

The CDC recommends avoiding direct skin contact with soil/sand by wearing shoes and protective clothing in areas with fecal contamination 2, 1
The WHO recommends using mosquito bite prevention measures (DEET repellent, permethrin-treated clothing, screened accommodations) especially if yellow fever vaccination contraindicated 5
The European Crohn’s and Colitis Organisation recommends carrying adequate IBD or chronic disease medications and instructions for emergency self-treatment 3