The modeling spread in the link is hilarious

Vaccine efficacies against infection, and symptomatic and severe disease for different vaccine types — for each variant and by time since vaccination — were drawn from published estimates. The model was calibrated to reported national incidence data between October 1, 2020, and November 30, 2022, and validated with the trends of hospitalizations and deaths. We evaluated the impact of vaccine rollout by simulating the pandemic trajectory under the counterfactual scenario without vaccination. The simulated outcomes of total infections, hospitalizations, and deaths were compared to the fitted model, reflecting the actual pandemic in the U.S. and vaccinations that occurred between December 12, 2020, and November 30, 2022. We then estimated medical cost savings based on these averted outcomes, as previously described.

“Published estimates” is the buzzword, they have no proof of efficacy so they simply do the Fauci and take the 98% effective published and then adjust for each new variant. What’s hilarious is that the Covid death numbers are so fucked to begin with the study actually suggests the numbers have been inflated based on their trend results.