Numerous pieces of evidence show that the Omicron variant is more likely to infect the throat than the lungs, which scientists believe may explain why this variant is more contagious but less deadly.

Six studies have found that Omicron does not damage human lungs as much as Delta and other previous variants of Covid.

"Basically, it seems to be more capable of infecting the upper respiratory tract - the cells in the throat. So it would multiply in those cells more easily than in the deep cells in the lungs. This is a preliminary result, but the studies lead to the same place. "

If the virus produces more cells in the throat, this makes it more transmissible, which may explain the rapid spread of Omicron. A virus that infects lung tissue, on the other hand, will be potentially more dangerous but less contagious.