Published in Cell Genomics, a new paleogenomic study of human remains discovered along the Atbara River in Sudan has identified a unique genetic signature of resilience to viral hemorrhagic pathogens dating back to the early Holocene. The analysis reveals a specific selection in the OAS1 gene cluster, which provided these ancient populations with an evolutionary defense against endemic tropical viruses long before the rise of settled agricultural civilizations in the Nile Valley.
This discovery provides critical evidence of how early hunter-gatherer groups in Northeast Africa adapted to the high-pathogen environments of riverine ecosystems. The researchers emphasize that these genetic markers represent the oldest known human evolutionary response to infectious diseases in the region, suggesting that the expansion of human populations into the Nile's fertile floodplains was heavily dependent on these specific genomic adaptations.