What is omicron?

The omicron virus is the variant of SARS COV-2 the first case of this virus was first found in south africa on 24 November 2021 the name omicron the fifteenth letter in the greek alphabet.The symptoms of this virus is weakness,tiredness, headache, low grade fever and pain in the throat.We can't compare this virus with delta even doctors said it's to early to say that omicron is more dangerous than delta.