CDC study from California and New York from May - Nov shows that natural immunity was more effective in keeping people out of hospitals than vaccines on the delta wave (3x better).
Shocker.
Length of natural immunity in this study was an average of ~250 days since previous infection while length since last jab was 4-6 months. So not even comparing apples to apples there and erodes the waning benefit argument that was used against natural immunity. Tiny marginal benefit of getting vaccine after infection.
@hhusky was it worth firing road crews over this still?
https://twitter.com/yossigestetner/status/1484022122951364612?s=21