U.S. NewsIn The Loop Actions Facebook Tweet Email How Vaccine Trials Select Their Volunteers COVID-19 vaccine trials studying results in 30,000 volunteers are underway, but it's not as simple as giving thousands of people shots at once. Prev Next Posted Most Recent Interactive: What does diesel's record price mean for you? Interactive: Even with insurance, a medical emergency could wreck your finances Experts share tips for making car seats safer for kids Scripps News Group U.S. News Flights disrupted across US Northeast because of technical problems AP via Scripps News Group Christian McCaffrey joins elite company with his 100th career touchdown AP via Scripps News Group Fat Bear Week returns, pitting Alaska’s biggest brown bears against each other Taylor O'Bier Watch Scripps News on your favorite app or smart TV. About Scripps News Download the Scripps News app.
