Share of one-year-olds vaccinated against yellow fever, 2021

Share of one-year-olds who have received the yellow fever vaccine (YF).

No data0%20%40%60%70%80%90%95%100%
World

Source: WHO; UNICEF (2022)

Note: Only countries with endemic yellow fever require YFV in routine immunization programs. Yellow fever is caused by a mosquito-transmitted virus, symptoms include fever, chills, headache, backache,and muscle ache.