"South African research finds Omicron variant more contagious but less likely to cause serious illness. Vaccinologists from South Africa, where the new Omicron variant is spreading quickly, say it may cause less serious COVID cases than other forms of the virus, despite it being more contagious than previous strains."
And yet I and others have posted articles from South Africa showing the trend continues that over 90% of those hospitalized in South Africa with Omicron are unvaccinated. The only good news being that only 8% of these hospitalized patients with Omicron are in ICU in South Africa compared to 24% with the Delta variant.
Bottom Line: Get vaccinated to avoid getting severely ill with Omicron.