.Attribute Medication, Posted online: 18 September 2024 doi:10.1038/ s41591-024-03300-3Genomic and epidemiologic studies revealed that an unique reassortant virus-like family tree of the Oropouche infection, which has been flowing in the western side Amazon.com area of Brazil for about a years, is linked with the recent individual episodes between 2022 as well as 2024.