Paper with meta-analysis of other studies comparing hybrid immunity, vaccine immunity, and infection immunity.
https://www.thelancet.com/journals/laninf/article/PIIS1473-3099(22)00801-5/fulltext
| A | B | A vs. B severe disease | A vs. B any infection |
|---|---|---|---|
| I | none | -83.2% | -69.5% |
| I+V | none | -95.9% | -71.6% |
| I+V+B | none | -97.6% | -74.8% |
| I+V | I | -57.7% | -46.1% |
| I+V+B | I | -80.1% | -46.5% |
| I+V+B | V+B | not listed | -88.9% |
| I+V+B | I+V | -37.0% | -40.8% |
I = previous infection
V = vaccination with primary series
B = vaccination first booster