Two doses of Covid vaccines offer no protection against Omicron infection and may even increase the risk of infection within months, according to a new paper in the New England Journal of Medicine.

In contrast, people previously infected with earlier coronavirus variants had a 50 percent lower risk of Omicron infection. That protection remained steady even more than a year after the initial infection.

But the details of the paper are even more devastating for mRNA shot advocates than those topline figures.

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The new paper comes from researchers in Qatar, the wealthy Gulf city-state, which has comprehensive data on both vaccinations and Sars-Cov-2 infections. The New England Journal, which published it last week, is among the world's best medical research outlets.