Delson is here. What does this mean?

China CDC responded on June 65438+1October 19 that the mutant strain has not been detected in China, and there is not enough research data on its transmission, pathogenicity and immune escape ability.

The first thing to clarify is that Deltacron is nothing new. XAY.2 mutant recently detected in Thailand has been detected in some European and African countries before, and the scientific community has maintained necessary vigilance and attention to it, but it has not been found to have any advantages or occupy the mainstream position in any region. Even the combination name of Deltarchon is just a common name to facilitate communication in the media. This name is used to refer to several different recombinant mutant strains in COVID-19. At present, none of these mutants is considered as a noteworthy mutant (VOC) or a mutant of interest (VOI) by WHO.