Omicron is a variant of the novel coronavirus that spreads quickly and is highly infectious compared to other strains. Omicron is the newest variant of the novel coronavirus, and infection may result in mild symptoms such as fatigue, muscle aches and pains, or a mild cough, or no symptoms at all. Omicron has more mutations than other novel coronavirus strains and may be more contagious, resulting in multiple or concentrated outbreaks. Omicron has a shorter incubation period than other novel coronavirus strains. Omicron is much more contagious than any other novel coronavirus strain and is still contagious with a 14-day incubation period. Patients still need to be actively vaccinated against omicron viruses with the novel coronavirus vaccine. If infection occurs, prompt isolation is required to prevent transmission to others. Currently, there is no specific treatment for the disease caused by the novel coronavirus, and it is mainly symptomatic, so the treatment needs to be based on the patient’s clinical condition. Novel coronavirus can be transmitted through respiratory droplets, so wear a good mask when going out and consult a doctor if you feel unwell.