“The omicron variant, the latest curveball in the pandemic, may lead to less severe cases of Covid-19 than earlier strains of the coronavirus, according to one of the largest real-world studies of omicron released so far.
That’s good news, but it could be overshadowed by other data showing that the variant is far more contagious than any version of the virus to date — and that it can evade some immune protection from vaccines and prior infection.
Taken together, these traits make for a counterintuitive situation: Omicron poses a lower risk to most individuals, at least for those who are vaccinated, but the threat to the overall population is high. The question now is whether omicron will infect so many people that it overwhelms the health care system and drives up hospitalizations and deaths — in spite of the smaller percentage of people who come down with severe disease.
The answer is partly in our hands. The strategies that have contained Covid-19 throughout the pandemic still work against omicron, but governments, institutions, and individuals have to be willing to use them.”
https://www.vox.com/22824183/omicron-variant-covid-19-vaccine-south-africa-pfizer-vaccine