The New Coronavirus epidemic is still prevalent worldwide and the New Coronavirus is mutating. The UK Health and Safety Executive has confirmed that a new mutant strain of the New Coronavirus, named New Coronavirus strain XE, has been monitored and is growing and spreading 9.8% faster than Omicron BA.2, but the sample of relevant studies is small and it is not possible to clarify how dangerous it is.1. How dangerous is New Coronavirus strain XE: New Coronavirus strain XE has shown a change in growth rate, but it is not yet possible to determine whether it has real growth potential, and there is not enough evidence to draw conclusions about infectivity, severity, or vaccine effectiveness, so it is not possible to determine how dangerous New Coronavirus strain XE is. 2. Difference between New Coronavirus strain XE and Omicron: Omicron is a mutant strain of New Coronavirus, including two mutant strains BA.1 and BA.2, while New Coronavirus strain XE is an XE is an advanced version of Omicron, a recombinant variant of BA.1 and BA.2, combining the genetic characteristics of both strains. The clear difference is that in terms of transmission speed, BA.2 spreads 75% faster than the original variant BA.1 of Omicron, while the growth rate and transmission speed of New Crown XE is 9.8% faster than Omicron BA.2, which means that New Crown XE is a more potent recombinant than both Omicron strains. However, the differences with Omicron in terms of infectivity, disease severity, or vaccine efficacy are not certain and are still being studied. Although the transmission of the new strain XE has not yet started in China, the general population should be aware of it and actively cooperate with the prevention and control authorities to protect themselves and avoid unnecessary travel activities, especially to countries where confirmed cases of the new strain XE have been detected, such as the United Kingdom and Israel. Once you feel sick, you should immediately inform your community and local hospital, so as not to conceal your health and even infect others and affect the public health safety of the society.