Omicron largely evades immunity from past infection or two vaccine doses | Imperial News | Imperial College London

COVID-19 OMICRON – The Omicron variant largely evades immunity from past infection or two vaccine doses according to the latest Imperial modelling.

Source: Omicron largely evades immunity from past infection or two vaccine doses | Imperial News | Imperial College London

Not peer reviewed.  But this is worrying:

“The study finds no evidence of Omicron having lower severity than Delta, judged by either the proportion of people testing positive who report symptoms, or by the proportion of cases seeking hospital care after infection. However, hospitalisation data remains very limited at this time.”