‘A lot of nonsense has spread’: virologist Drosten comments on coronavirus variables – Wikipedia

Virologist Christian Drosten spoke again on Twitter for the first time in two weeks. After “a lot of nonsense” spread in the past few weeks, he wanted to give some information about the SARS-Cove-2 virus.

[Lesen Sie bei T+: Wer die vierte Impfung braucht – erst ab diesem Alter ist der zweite Booster nötig]

He provided an overview of the currently known omicron sublines. Three new variants are currently observed by Sars-CoV-2 surveillance: BA.4, BA.5 and the F486V mutation.

Omikron BA.4 and BA.5 are variants of Omikron with their own origin. They are not descended from the BA.1, 2 or 3 species familiar to us, but rather from a common ancestor of the omicron. In addition to Omicron, these variants have the spike L452R mutation, which is already known from Delta, among others.

Drosten warned that in hamster experiments this mutation resulted in increased virulence, so they were more contagious. In addition, immune escape is likely. “In addition, there is the F486V mutation that should also be associated with Immunescape,” Drosten explained. This means that omicron species at least partially bypass an immune defense against other variants of Sars-CoV-2 formed by the body through vaccination or infection.

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