The U.S. drug regulator on Saturday granted emergency use authorization for Johnson & Johnson's coronavirus vaccine, the third such vaccine it has approved and the first to offer protection with just one shot.The vaccine is raising hope for a simpler mass inoculation process, given that the current two approved vaccines require two shots. It can be stored for three months at normal refrigerator temperatures and has a two-year shelf-life when frozen.The U.S. Food and Drug Administration has confirmed the safety of the vaccine based on data provided by the major U.S. pharmaceutical company fr…READ FULL ARTICLE
