Imagine a blood test that could quickly tell if someone has Ebola, not just a fever. That's the promise of new research on a gene signature.
Scientists analyzed blood RNA from primates and people with Ebola and compared it to other infections like flu, HIV, and SARS-CoV-2. They identified 281 Ebola-specific genes, and a top-50 set cleanly separated Ebola from other samples. In an independent test, using just those 50 genes boosted the test's accuracy from 37.5% to 95%. The genes pointed to pathways involving blood vessels, clotting, and metabolism, and one gene, ADAMTS1, was consistently upregulated in Ebola but not in other infections.
This work is based on lab data, not a clinical trial, and the findings are early. The signature needs real-world validation in patients to confirm its accuracy. But it offers a clear path toward a host-based diagnostic that could help in outbreaks.