Human challenge trials have been a part of developing cures for many diseases over the last century. A UK-based campaign called 1 Day Sooner are asking young people around the world to join the first coronavirus human challenge trials.
Novavax's vaccine candidate has produced the highest number of antibodies according to vaccine experts. As they enter the final stage of human trials, they will also be testing some participants with the flu vaccine at the same time.
Johnson & Johnson will be entering phase three of human trials, including 60,000 participants from three continents. They also continue to look for other possible treatments for coronavirus as their vaccine candidate completes safety and efficacy trials.