The yellow fever outbreak in Brazil began in Dec. 2016 and since that time, some 1000 reported cases have or are being investigated, according to the latest data from the Ministry of Health, or the Ministério da Saúde (computer translated).

Aedes albopictus/FotoshopTofs
Aedes albopictus/FotoshopTofs

As of Feb. 6, 1,006 suspected cases of yellow fever were notified to the Ministry of Health : 751 (74.6%) cases remain under investigation, 180 (17.9%) cases were confirmed and 75 (7.5%) cases were discarded.

The demographic profile of the confirmed cases coincides with that usually observed in outbreaks of yellow fever. The majority of cases were reported in economically active males, according to the report. These individuals are more frequently exposed to areas and situations of risk, mainly due to their jobs.


Of the total cases, 157 resulted in death (65 confirmed / 3 discarded / 89 under investigation).  The case fatality rate among confirmed cases was 36.1%.

Of the total cases, five states and 109 municipalities have been affected by the outbreak. Minas Gerais remains the most affected state with  873 reported cases (158 confirmed / 55 discarded / 660 under investigation) in 71 municipalities.

Bahia, Espirito Santo, São Paulo and Tocantins have also reported suspect and/or confirmed yellow fever cases.

Concerning non-human primates, 454 epizootic diseases were reported to the Ministry of Health in non-human primates involving the death of 1,280 animals, of which 276 were confirmed for yellow fever.