COVID-19 July 22, 2020 8:48 am Which Vaccines are Showing Most Promise in Covid-19 Battle A deep dive into the vaccines showing the most promise in battling Covid-19 as volunteer trials get underway. US & World Videos 1:20 Gigi Hadid wows in sweeping Met Gala look 1:52 Amanda Seyfried reveals her kids' reaction to her daring metallic Met Gala look 1:34 Nicole Kidman floored over Olivia Rodrigo's AMC ad tribute 1:12 Ariana Grande channels Glinda at 2024 Met Gala 1:02 20% of nurses to leave field within 2 years