Stamaril Vaccine is medicine given to individuals 9 months and older for prevention of yellow fever. It is recommended for individuals living in or traveling to endemic areas. Stamaril Vaccine is administered by a healthcare professional and should not be self-administered. It protects against yellow fever transmitted by infected mosquitoes. The vaccine provides effective immunity within 10 days for 80-100% of people vaccinated and within 30 days for more than 99% of people vaccinated.