Chinanews.com, January 5th, according to the US Consumer News and Business Channel (CNBC), Van Kerkhoff, technical director of WHO's new crown epidemic response, said on the 4th that XBB.1.5 has become the most contagious mystery so far. Croon subtype variants.

Data map: A new crown virus testing station on 14th Street in Manhattan, New York, USA, tests residents.

Photo by China News Agency reporter Liao Pan

  According to reports, Van Kerkhoff said that global health officials have expressed concern about the speed at which the new crown variant strain Omicron subtype XBB series variant strain XBB.1.5 is spreading in the northeastern United States.

In the United States, the number of XBB.1.5 infections doubles approximately every two weeks, making it one of the most dominant variants in the country.

  "This is the most contagious subtype variant found so far. The reason is that mutations within this Aomekron subtype variant allow the virus to adhere to cells and easily copy."

  Van Kerkhoff also said that XBB.1.5 has immune evasion, and like other Aomecron subtype variants, the more it spreads, the more chance it has to mutate.

In her view, "more waves of infection are expected around the world, but this will not necessarily translate into more waves of deaths as our response continues to work."