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Medical Information for the World Traveler

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  • Resources
  • Pre-Travel Advice
  • Diseases and Prevention

Resources

International Association for Medical Assistance to Travelers (IAMAX)
1623 Military Rd. #279
Niagara Falls, NY 14304-1745
716-754-4883
www.iamat.org/

CDC - Travelers' Health
877-FYI-TRIP (toll free)
Malaria Hotline:
770-488-7788 (M-F, 8am-4:30pm, eastern time)
770-488-7100 (after hours emergencides)
wwwn.cdc.gov/travel/default.aspx

State Department Travel Center
888-407-4747
202-501-4444 (from overseas)
www.travel.state.gov/

Fujmoto, Robin and Dessery. (2003). The Medical Guide for Third World Travelers, 3rd ed. Prairie Smoke Press: Brooklyn Center, MN
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Pre-Travel Advice

  • Discuss pre-existing medical conditions with physician.
  • Plan for travel immunization at least one month prior to travel.
  • Plan two to three months in advance for extended travel.
  • Travel with a brief medical summary and a copy of EKG/chest X-ray.
  • Check on health insurance/evacuation insurance.
Pre-Travel Advice for Prolonged Travel
  • Visit dentist
  • Carry extra pair of glasses/contact lenses
  • Bring copy of optical prescription
  • Bring ample supply of all medications
  • Assemble a medical kit
  • Use caution with foreign medications!
Routine Immunizations
  • Measles, Mumps, Rubella (MMR)
    • One booster dose after age five if born after 1956
    • Avoid with pregnancy
  • Polio
    • One booster dose after age 18 for travel to high risk areas (must complete primary series)
  • Diphtheria - Tetanus
    • Normal booster doses every 10 years for all
    • Consider booster within five years for certain types of travel

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Diseases and Prevention

Cholera

  • The World Health Organization and the CDC do not recommend cholera vaccinations for travelers.
  • Some countries require proof of vaccination for entry
  • Vaccination clinically needed only for those individuals lacking gastric acid
  • Vaccination is only 50 percent effective
  • Vaccination requires booster doses every 6 months
  • Generally not recommended

Hepatitis A
  • "Infectious" hepatitis - oral or fecal transmission extremely common in developing countries
  • Children less than 2 years old generally without symptoms
  • Adults can have symptoms of fever, nausea, vomiting, jaundice, lasting weeks or months
  • Less than 20 percent of adults in U.S. under 50 have antibodies
  • Vaccines:
    • Immune globulin (gamma globulin) used to prevent infection
    • IG from human serum rendered safe by special processing
    • Can last up to 5 months
    • Smaller doses for shorter trips
    • Need to wait 4 weeks after a live virus vaccine (MMR)
    • New inactivated vaccine now available
    • Confers 80-98 percent protection in 15 days

  • Adult and pediatric vaccines:
    • Adults should receive two doses and 6 to 12 months apart
    • Pediatric (2-18 years old) should receive two doses 6 months apart

Hepatitis B
  • "Serum" hepatitis
  • Transmitted through blood (blood products, sexual routes)
  • Similar to hepatitis A but usually less abrupt onset
  • Ten percent chronic carrier states
  • Now used for children
  • Indicated for long-term travelers (especially children), those living or receiving medical care abroad and those anticipating sexual contacts with local residents
  • Usually need 2 months for initial immunization (0, 1, 6 months or 0, 1, 2, 12 months)
  • Can use accelerated series - three doses in three weeks, plus one dose in 12 months

Japanese Encephalitis
  • Occurs in the Far East and Southeast Asia
  • Rare disease in travelers
  • Mosquito-born infection
  • Highest occurrence in rural farming areas during summer and autumn
  • Vaccination should be considered if spending more than 30 days in rural areas
  • Vaccination requirements:
    • Three doses given on days 0, 7, 30 or 0, 7, 14
    • MUST have immediate access to medical care for 10 days after each dose

Malaria
  • Disease acquired through the bites of infected anopheles mosquitoes
  • Exists in tropical or developing countries
  • Many areas have chloroquine-resistant malaria
    • Mefloquine (Larium) is used for travel in these areas
    • Taken 1 week prior to departure with weekly doses throughout trip continuing for four weeks after leaving malarious area
  • Reduce your risk of malaria infection by:
    • Avoid outdoor activity between dusk and dawn
    • Wear protective clothing - treat clothing with permethrin
    • Use mosquito netting
    • Use insect repellents that contain DEET

Measles, Mumps, and Rubella (MMR)
  • Booster is recommended for travelers who:
    • Were born after 1956 and did not get booster dose after age four
    • Received MMR between 1963-67 but do not know which vaccine
  • Booster is not recommended for:
    • Women who are pregnant or suspect they may be pregnant
    • Pregnancy should be avoided for at least three months after vaccination

Meningococcal Vaccine
  • Risk to travelers of this disease is low
  • Vaccine is available
  • Booster doses given every three years to those at risk

Polio
  • Is a hazard in third-world countries.
  • Vaccine recommendations for high risk areas
    • Three doses of oral vaccine or injected vaccine for primary immunization
    • 1 booster prior to travel for adults who have received primary immunization series

Rabies
  • Low risk for short-term travelers
  • Young children, field workers, animal handlers, long-term visitors or hikers traveling in remote areas may consider vaccine
  • Rabies vaccine:
    • Requires a dose series for prevention
    • Eliminates the need for the rabies immune globulin, which is difficult to obtain in third-world countries
    • If three-dose immunization series is given, then only two additional doses are needed following a bite, versus the five-dose series

Tetanus-Diphtheria
  • Occurs in the United States and abroad
    • Vaccine recommendations:
      • Primary immunization during childhood for most adults
      • Booster doses needed every 10 years
      • Booster doses should be up-to-date prior to travel
    • Consider a dose within past 5 years if prolonged or remote travel is anticipated

Travelers' Diarrhea
  • Caused by a variety of viral, bacterial and parasitic diseases
  • Most cases are mild and self-limited (three to six days)
  • Incubation period averages three days
  • Prevention of travelers' diarrhea:
    • Avoid contaminated food and water
    • Medications are available and can be prescribed to take if symptoms develop
    • Use of prophylactic antibiotics is NOT recommended

Typhoid
  • Found in many developing countries
  • Acquired through contaminated food or water
  • High fever, muscle aches, abdominal pain, headaches
  • Most cases occur in adults
  • Can be life-threatening if untreated
  • Typhoid vaccine (injectable version):
    • Requires two injectable doses four weeks apart or three doses at weekly intervals
    • Provides approximately 70 percent protection
    • Booster dose required every three years

  • New typhoid vaccine
    • Highly purified vaccine - not killed bacteria
    • Takes two to four weeks to develop immunity
    • Highly effective single dose provides protection for two years
    • Can be used in children as young as age two

  • Oral typhoid vaccine
    • Four oral doses every other day
    • Highly effective
    • Booster dose needed every five years

Yellow Fever
  • Occurs in tropical Africa, South America and Panama
  • Immunization is:
    • Required for entry into some countries in areas listed above
    • Required for entry into countries if coming from a yellow fever endemic area
    • Avoid vaccine if pregnant
    • Booster needed every 10 years

Last reviewed: December 2006

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