The yellow fever vaccine used toprevent infection by the virus of yellow fever.

We recommend immunization againstyellow fever for every person in 9 months of age and older who aretraveling or living in areas of Africa, South America and othercountries where yellow fever infection. In addition, people aretraveling to countries that require yellow fever immunization(certificate of vaccination) should be immunized. You also needimmunization against yellow fever for others who may come intocontact with the virus of yellow fever.

Infants 6 to 9 months of age andpregnant women should be immunized only if they must travel to areaswhere there is an epidemic of yellow fever and can not be protectedagainst mosquito bites.

Infants 4 to 6 months old can bevaccinated only if there is a high risk of infection by yellow fever.

We do not recommend immunizationagainst yellow fever in infants under 4 months of age because theyhave a higher risk of suffering serious side effects from thisvaccine.

The certificate of vaccination againstyellow fever is effective 10 days after the first immunization andlasts 10 years. If you receive a second yellow fever vaccine lessthan 10 years after the first injection, vaccination certificatebecomes effective the day of the second immunization.

The yellow fever vaccine is given onlyat the Centers for yellow fever vaccination authorized. Their healthdepartments of state, provincial or local can tell you where to findthese sites.

If some of the information in thisbooklet will cause particular concern or would like more informationabout its vaccine and its use, check with your doctor, nurse orpharmacist.

Tell your doctor, nurse and pharmacistif you. . . . .

Side effects that should be reported toyour doctor immediately

Rare - Confusion, convulsions, cough,rapid heartbeat, burning, tingling or tingling in the skin, headache(very strong), nervousness or irritability, redness of skin rash oritching, sneezing, stiff neck, vibration in the ears, difficultybreathing or swallowing, unusual tiredness or weakness, vomiting

Side effects that usually do notrequire medical attention

These side effects usually disappear asyour body adjusts to the vaccine, however, if they continue or arebothersome, check with your doctor, nurse or pharmacist.

Less common - Fever (mild), headache(mild), sore muscles, pain at the injection site

Other side effects not listed above mayalso occur in some patients. If you notice any other effects, checkwith your doctor, nurse or pharmacist.