CORONAVIRUS - OMICRON VARIANT, WHAT WEE NEED TO KNOW?

As the coronavirus epidemic continues across the world, the omicron variant is at the heart of the news. Here's everything you need to know about this covid 19 mutant.
The fight against the coronavirus epidemic has taken a new step with the arrival of the omicron variant, a new mutant of covid-19. Consequently, many questions arise: is it more contagious? More dangerous ? Are vaccines still effective? Should we adapt them?