Sadly, the ZeroCovid ship has sailed.

* Covid vaccines only partially prevent infection or transmission. To the best of my understanding even 100% vaccination cannot prevent outbreaks.

* We live in an 8bn people world + God know how many animal reservoirs. It is logistically impossible to vaccinate every living being susceptible of covid infection. We've got to live with endemic covid.

* Fortunately the toll on children and teens is very small, and the vaccines do work best in preventing severe cases across the entire population, which makes living with endemic covid a whole lot more palatable.

At some point we have to face the unavoidable. There will be variants, there will be outbreaks, hopefully the impact will be bearable.

https://www.healthline.com/health-news/heres-how-well-covid-...

https://www.nature.com/articles/d41586-021-00396-2

https://www.cnbc.com/2021/08/12/herd-immunity-is-mythical-wi...

https://assets.publishing.service.gov.uk/government/uploads/...