Harvard Medical School Apr 4 2025 New research shows how small shifts in the molecular makeup of a virus can profoundly alter its fate. These shifts could turn a deadly pathogen into a harmless bug or supercharge a relatively benign virus, influencing its ability to infect humans and cause dangerous outbreaks. This is the latest finding in a series of studies led by Jonathan Abraham, associate professor of microbiology in the Blavatnik Institute at Harvard Medical School, and his team that aim