Moderna files with the FDA for emergency authorization to use their COVID vaccine in kids aged 12-17: In a Phase 2/3 trial of 12- to 17-year-olds, the pharmaceutical company found that blood tests "showed that the vaccine produced an immune response that was equivalent to earlier findings in adults." None of the kids who were fully immunized got sick with COVID, while four kids who received the placebo did come down with the virus. The...