Scientists are getting closer to developing a vaccine for Covid-19. Success would be a game-changer and mark a key turning point in the fight against the virus.
Investors are betting it would be a boon for the winning company as governments around the world would immediately clamber to place orders.
Moderna, a biotechnology company based in America, is leading the race, according to Nina Deka of Robo Global, a research group. Its share price has risen by 170pc this year but has been very volatile.
Larger, more diversified companies carry less risk, according to Dan Mahony of Polar Capital, the