Twelve confirmed human yellow fever cases have been reported in São Paulo State, including six fatalities, according to the PAHO.


Cases have been reported in the municipalities of Eldorado (9 cases) and one each in Jacupiranga, Iporanga, and Cananeia in the southern part of the state.

“Human cases reported during the current 2018-2019 seasonal period in four municipalities in Sao Paulo State, as well as the confirmation of epizootics in the state of Paraná, mark the beginning of what could be a third cycle and a progression of the outbreak towards the Southeast and South regions of the country,” PAHO said.

The two most recent waves of yellow fever in Brazil include the 2016-2017 season which had 778 human cases, including 262 deaths. The other occurred during the 2017-2018 seasonal period, with 1,376 human cases, including 483 deaths.

Yellow fever is a viral disease that is transmitted by mosquitoes belonging to the Aedes species. Yellow fever can lead to serious illness and even death. Yellow fever vaccine is the best protection against yellow fever disease, which can be fatal.