Merchants of herd death oversold immunity. People are being reinfected immediately again after Omicron infection.
We have the data: Both laboratory experiments and actual cases.
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Evidence from a study showing immunity based upon “mild" Omicron infection is weak for Omicron reinfection, and limited for cross immunity to Delta infection.
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medrxiv.org/content/10.110…
Overall, immunity from Omicron infection is much lower than the immunity from Delta infection, correlated with the severity of infection. So unless you get a severe infection with all of its consequences you also don’t get immunity from having another infection.
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And recall even immunity from severe infection wanes rapidly in a few months.
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Summary: "Neutralizing immunity...from Omicron and Delta"
"We found a significantly smaller rise of neutralization titers associated with milder Omicron breakthrough infection in vaccinated individuals, to only approximately one-third of the rise associated with boosting.
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"We also identified limited cross-variant immunity to Delta."
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"Thus, breakthrough infection from Omicron may enhance cross-protection against Delta, and vice-versa, [only] inasmuch as there is a sufficiently large increase in baseline neutralizing immunity, which appears to be related to the clinical severity of the infection.
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"Our findings parallel those from another study from our group that demonstrated limited cross-variant immunity after milder Omicron variant infection in unvaccinated individuals in a mouse model and in human patients.
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"Taken together, our results suggest that Omicron-induced immunity may not be sufficient to prevent infection from another, more pathogenic variant, should it emerge in the future.
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Actual cases of reinfection by Omicron are so widespread they are manifest to anyone who is not closing their eyes:
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(See comments in that thread)
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Important addition:
Anthony Leonardi @fitterhappierAJ has shown that the immune system T-cells are damaged by covid (shades of HIV), potentially undermining not just Covid immunity but immunity to other diseases, and part of Autoimmune dysfunction after covid.
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