The U.S. supply of the yellow fever vaccine will run out by about midsummer, the CDC reported Friday in the Morbidity and Mortality Weekly Report. Officials are working on an emergency importation Be sure to contact the clinic ahead of time. 10. Who should not get the yellow fever vaccine? A: Some people should not get the yellow fever vaccine: infants younger than 6 months, or people with a history of a bad reaction to the vaccine should not receive yellow fever vaccine. If you have a thymus disorder associated with abnormal immune cell Jaundice following vaccination of horses was noted in 1919 by Theiler 34 and in 1937 by Marsh. 35 In a key article in 1937, Findlay and MacCallum 21 confirmed that jaundice following yellow fever vaccination was not caused by yellow fever, and hypothesized a virus was the cause. 22,36,37 In 1938, jaundice was noted after measles vaccination. 9 Why get vaccinated? Yellow fever vaccine can prevent yellow fever. Yellow fever is a serious disease caused by the yellow fever virus. There is no medicine to treat or cure yellow fever. Yellow fever virus is spread by the bite of an infected mosquito. It is found in parts of Africa and South America. Yellow Fever: Any traveler ≥9 months old arriving by air or by sea without a YF vaccination certificate will be detained in isolation for ≤6 days if they. Arrive within 6 days of leaving an area with risk for YF virus transmission, or yellow fever infection is officially reported at the time of travel should be vaccinated. Vaccination is also recommended for travel outside the urban areas of countries that do not officially report the disease but that lie in a yellow fever endemic zone. International Travel Yellow fever vaccination may be required for international travel. Rarely will people contract the illness when they travel to places at risk for yellow fever. Vaccination can prevent yellow fever. Yellow fever is usually mild, but it can be fatal. Severe cases occur about 15% of the time. Of those, it is fatal in 30% to 60% of cases. 9 Sources. A single dose of yellow fever vaccine is sufficient to grant sustained immunity and life-long protection against yellow fever disease. A booster dose of the vaccine is not needed. 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. GYG6t.