Travelers’ Health and Yellow Fever

Yellow fever is a disease caused by a virus spread through mosquito bites. Symptoms of yellow fever include fever, chills, headache and muscle aches. Approximately 15 percent of people who get yellow fever develop serious illness that can sometimes be fatal. Destinations where people are most at risk are South Africa, South America and Nigeria. Some destinations require a certificate of proof for vaccinations against yellow fever upon entry.

The U.S. Centers for Disease Control and Prevention (CDC) recently issued a level-2 travel alert for yellow fever in Brazil. Since early 2018, many unvaccinated, non-U.S. travelers to Brazil have been diagnosed with yellow fever, and several have died. Vaccination is now recommended for more regions in Brazil, including Ilha Grande, and the cities of Rio and Sao Paulo. Public health officials advise against travel to areas in Brazil where vaccinations are recommended, or any to country considered at risk for yellow fever, without first being vaccinated.

U.S.-licensed yellow fever vaccine is not currently available due to production limitations. In the U.S., a limited number of clinics have been selected to offer a safe alternative vaccine called Stamaril. Refer to the CDC’s clinic map to find the clinic closest to you. LEI Medical Group is not able to offer Stamaril at this time.

Preventing Yellow Fever

  • Talk to your doctor before travel
  • Get vaccinated at least 10 days before travel. Infants younger than 6 months old should not get the vaccine.
  • Prevent mosquito bites by using insect repellent, wearing protective clothing, sleeping in an air-conditioned room, mosquito-proofing your house and getting rid of standing water where mosquitoes might breed.
  • Before travel, check the CDC’s Travel Health Notices on health risks in specific countries and regions.

LEI Medical Group’s medicine program offer first-class trip advisory, health monitoring services, and immunization such as influenza, hepatitis A, hepatitis B, typhoid, meningitis, rabies and yellow fever (when available).

Additional Resources

WorkCare Fact Sheets

CDC Travelers’ Health

U.S. Department of Health & Human Services

Our Services

Medical Exams and Screenings

Medical surveillance programs add value by identifying workplace hazard exposure risks and providing exams and testing for exposure-related health conditions. LEI Medical Group provides physical exams and tests that are fully compliant with applicable rules and regulations while taking into consideration specific job tasks and clients’ goals, operations and culture.

The following are examples of exams and screenings performed by the LEI Medical Group clinical staff:

  • Department of Transportation
  • Oil and Gas UK (OGUK)
  • Government and Public Safety
  • Pre-placement/Post-offer
  • Return to Work
  • Executive Physicals
  • Hearing Conservation
  • Respiratory Protection
  • X-rays

Drug Screens & TB Testing

Many companies require job applicants to undergo a urine drug screen prior to hire. Employees also may be tested for cause, after an accident or under a random drug screening program.

Similarly, TB testing is required for many types of employment, including education, health care, public safety and social services.

LEI Medical Group accepts appointments and walk-ins for drug screening and TB testing. It’s fast and easy. A valid ID is required.


Whether you will be traveling outside of the U.S. by land, sea or air for business or pleasure, our TravelCare program has got you covered.

Services include:

  • Pre-travel health screenings
  • Immunizations for diseases such as Hepatitis A and B, typhoid, meningitis, rabies and yellow fever
  • International Certificate of Vaccinations
  • Prescriptions for the prevention of malaria and treatment of traveler’s diarrhea
  • Notification of epidemics and at-risk areas
  • AIDS testing requirements and blood-screening measures
  • Suggested precautions, medical preparation check list and contents for a travel first-aid kit
  • Contact information for U.S. and British embassies and other consulates

Visit sheets for information on Zika virus and other travel-related health issues.