None of the 10 travelers had received yellow fever vaccination.įive of the 10 cases were reported by ProMED since January 15, including two from Argentina and three from Chile two of the travelers from Chile died. Since January 2018, 10 travel-related cases of yellow fever, including four deaths, have been reported in international travelers returning from Brazil. On January 16, 2018, the World Health Organization updated yellow fever vaccination recommendations for Brazil to include all persons traveling to or living in Espírito Santo, São Paulo, and Rio de Janeiro states, and certain cities in Bahia state, in addition to areas where vaccination had been recommended before the recent outbreak ( 3). An outbreak of yellow fever began in Brazil in December 2016 since July 2017, cases in both humans and nonhuman primates have been reported from the states of São Paulo, Minas Gerais, and Rio de Janeiro, including cases occurring near large urban centers in these states ( 2). Effective live-attenuated virus vaccines are available that protect against yellow fever ( 1). Most patients with yellow fever are asymptomatic, but among the 15% who develop severe illness, the case fatality rate is 20%–60%.

Yellow fever virus is a mosquito-borne flavivirus that causes yellow fever, an acute infectious disease that occurs in South America and sub-Saharan Africa.

2018 global destination cities index mc