RT Journal Article SR Electronic T1 SARS-CoV-2 Omicron variant virus isolates are highly sensitive to interferon treatment JF bioRxiv FD Cold Spring Harbor Laboratory SP 2022.01.20.477067 DO 10.1101/2022.01.20.477067 A1 Denisa Bojkova A1 Tamara Rothenburger A1 Sandra Ciesek A1 Mark N. Wass A1 Martin Michaelis A1 Jindrich Cinatl, jr. YR 2022 UL http://biorxiv.org/content/early/2022/01/24/2022.01.20.477067.abstract AB Recently, we have shown that SARS-CoV-2 Omicron virus isolates are less effective at inhibiting the host cell interferon response than Delta viruses. Here, we present further evidence that reduced interferon-antagonising activity explains at least in part why Omicron variant infections are inherently less severe than infections with other SARS-CoV-2 variants. Most importantly, we here also show that Omicron variant viruses display enhanced sensitivity to interferon treatment, which makes interferons promising therapy candidates for Omicron patients, in particular in combination with other antiviral agents.Competing Interest StatementThe authors have declared no competing interest.