The world's biggest coronavirus vaccine trial is now underway
The final-stage testing of what is set to be the world's biggest Covid-19 vaccine trial got underway in the US on Monday as 30,000 citizens got ready to take part.Final-stage testing of the vaccine, developed by the National Institutes of Health (NIH) and Moderna Inc, began with volunteers at numerous sites around the US given either a real dose or a dummy without being told which.“I’m excited to be part of something like this.