The primary advantage is that it provides immunity against yellow fever, a potentially severe and life-threatening viral disease.
A single dose of the yellow fever vaccine typically offers lifelong protection for most people, reducing the need for booster shots.
By vaccinating large populations, especially in endemic areas, the spread of yellow fever can be significantly controlled, preventing outbreaks.
Many countries require proof of yellow fever vaccination for travelers coming from or transiting through yellow fever-endemic regions.
Widespread vaccination helps achieve herd immunity, protecting those who cannot be vaccinated due to medical reasons.