Vaccines protect travelers from getting diseases abroad that may not normally be found in the United States.
Visiting another country can put you at risk for diseases that may not normally be found in the United States. Getting vaccinated against certain diseases is one of the most effective things you can do to protect your health abroad. Plan to get the travel vaccines you need at least a month before your trip. Most vaccines need to be given ahead of time to give you full protection against a disease. If you need a yellow fever vaccine, plan to travel some distance away from where you live to get it. Only a limited number of clinics have the vaccine.