Levels of sars-cov-2 antibodies among fully vaccinated individuals with delta or omicron variant breakthrough infections

HIGHLIGHTS

• who: Nina Breinholt Stu00e6rke from the spike IgG u2264 , log, BAU. Also, no significant association remained between the level of total anti-spike IgG and the risk of breakthrough infection with the Omicron variant (Fig., ). Results of the sensitivity analysis using total anti-spike antibody levels in quintiles specific for each variant were consistent to the main analysis for the delta variant. For the omicron variant we observed a slightly increased risk of breakthrough infection at higher antibody levels (Supplementary Fig., ) which was likely due to the timing of the booster vaccine doses coinciding with the peak . . .
  

   

  

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