Most of the mutated strains of the new coronavirus are relatively more infectious. Neocoronaviruses, or novel coronaviruses, are mainly transmitted by respiratory droplet and contact, and are generally susceptible to the population, causing lung inflammation. There are currently 11 named variant strains of Neocoronavirus, including Alpha, Beta, Delta, Omicron, etc. Most of the Neocoronavirus variant strains are relatively more infectious. During the epidemic period, in order to prevent new coronavirus infections, daily activities should be minimized, avoiding areas where the disease is circulating, wearing masks when going out and maintaining hand hygiene, and those who are eligible for the new coronavirus vaccine should also receive it in a timely and active manner.