Scientists in Brazil are releasing genetically modified mosquitoes into the environment to combat soaring cases of dengue fever in the country.
More than 1 million cases of the viral, mosquito-spread infection have been reported in the first two months of this year — 226% more than were reported in the same period in 2023. Various cities are in states of emergency. For example, in February, Rio de Janeiro declared the outbreak a public health emergency after the city recorded more than 42,000 cases of the disease since the start of the year, according to the Associated Press.
