What about attempts to test their virulence in humans? The approach in the Stanford lab sure sounds like a new form of gain-of-function research to me.
A newly discovered genetic clock acts as the bodyβs developmental timekeeper, coordinating the bursts of gene activity needed for growth. Scientists found that when this clock breaks down, development comes to a halt. Think about a train sitting at a station. Passengers have boarded, conductors are checking tickets, and everything is ready to go. But [...]