[pfg]

This study[1] shows 70% effectiveness against hospitalization for the Pfizer vaccine (based on a two-dose regime; the level of protection would likely be significantly higher for boosted populations).

I'll leave it to you to do the math on what this would mean for the healthcare system if we take current daily infections and remove that effect.

[1]: https://www.nejm.org/doi/full/10.1056/NEJMc2119270