Brazil authorities say 3 more people die from yellow fever

In this Jan. 27, 2016, file photo, an Aedes aegypti mosquito is photographed through a microscope at the Fiocruz institute in Recife, Pernambuco state, Brazil. (AP/Felipe Dana)

SAO PAULO -- Authorities in Brazil say three more people have died in a yellow fever outbreak.

Most cases reported have been in the southeastern state of Minas Gerais, where authorities confirm 109 cases including 40 people who died.

The Sao Paulo Health Department said Monday it has confirmed six people with yellow fever in its area, four of whom were infected in Minas Gerais. All died.

Espirito Santo state has recorded one case.

Brazil's Health Ministry said in a statement that 568 suspected cases have been reported nationwide, with 107 confirmed and 430 under investigation.

Much of Brazil is considered at risk for yellow fever, but the country has not seen this large an outbreak since 2000.

The World Health Organization expects the mosquito-borne fever will spread to more states.