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Common Health Problems Linked to Travel in Developing Countries

Some of the most common health problems linked with travel to developing countries are:

  • Traveler's diarrhea. This is by far the most common risk. It affects up to 4 in 5 international travelers based on the destination.

  • Enterotoxic E. coli diarrhea

  • Malaria

  • Acute febrile respiratory tract infections

  • Influenza

Less common infections may also be a risk in certain areas. Some are related to sexual contact with an infected person: 

  • Hepatitis (A, B, and C)

  • Gonorrhea

  • Animal bites with rabies

  • Typhoid and paratyphoid fever

  • HIV infection

  • Legionella infection

  • Cholera

  • Meningococcal disease

  • Dengue fever

  • Prion diseases

  • Yellow fever

  • Tuberculosis

  • SARS (severe acute respiratory syndrome)

  • Poliomyelitis

  • COVID-19

For the most current CDC travel advisories, visit the CDC website.

Online Medical Reviewer: Barry Zingman MD
Online Medical Reviewer: Daphne Pierce-Smith RN MSN
Online Medical Reviewer: Terri Koson DNP RN ACNP
Date Last Reviewed: 9/1/2025
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