COVID-19′s rapid spread throughout the world has been fueled in part by the virus’ ability to be transmitted by people who are not showing symptoms of infection. Now, a study by researchers at Princeton has found that this silent phase of transmission can be a successful evolutionary strategy for pathogens such as viruses like the one that causes COVID-19. The study was published May 8 in the journal Proceedings of the National Academy of Sciences. To read the full story.