Anonymous24 days ago
A landmark UC San Diego study published in Cell reveals that the viruses behind recent pandemics — including COVID-19, Ebola, and mpox — showed no signs of special evolutionary adaptation before jumping from animals to humans, upending decades of scientific assumptions. The finding reframes pandemic preparedness by suggesting that many animal viruses may already possess the basic capacity to infect humans, making constant surveillance of the animal-human interface more critical than ever — especially as H5N1 bird flu continues its alarming spread across mammalian species.