.Attributes Medicine, Released online: 18 September 2024 doi:10.1038/ s41591-024-03300-3Genomic and epidemiologic studies exposed that an unfamiliar reassortant virus-like descent of the Oropouche virus, which has been circulating in the western Amazon.com location of Brazil for about a years, is actually connected with the latest individual episodes between 2022 and 2024.