Moderna is seeking emergency use authorization from the US Food and Drug Administration for its Covid-19 vaccine for children 6 months through 5 years of age, the company said. Sanjay Gupta looks at how the clinical trials unfolded.
Nolan Wells, an 18-year-old who died on a boat trip to Horn Island, Mississippi, is the subject of an ongoing investigation into the events leading up to his death, with his family pressing for transparency and answers.