image

Health workers fumigate against the Aedes aegypti mosquito, a vector of the dengue, Zika, and Chikungunya viruses in Contagem, metropolitan region of Belo Horizonte, state of Minas Gerais, Brazil, on February 2, 2024, as the country faces a substantial increase in dengue fever cases. (Photo by DOUGLAS MAGNO / AFP) (KEYSTONE/AFP/DOUGLAS MAGNO)