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Re:Omicron at 100% Prevalence, Colorado by stefan_ on Thursday January 06, 2022 @11:47AM (#29825910)
Omicron evades the "natural immunity" that people were getting a hard on for. That explains a lot (not all) of the massive fitness it has - it can infect people that previously had Covid infections again.
Re:Omicron at 100% Prevalence, Colorado by nradov on Thursday January 06, 2022 @12:54PM (#29827019)
Immunity is a spectrum, not a binary condition. Infection by previous variants appears to still provide a significant level of durable cellular immunity against Omicron.

https://www.biorxiv.org/content/10.1101/2021.12.06.471446v1

Re:Omicron at 100% Prevalence, Colorado by unmole on Thursday January 06, 2022 @12:02PM (#29826159)
Does it only evade natural immunity and not that imparted by vaccines?