In the real world, the vaccines don't provide anywhere near 99.99% protection. There are some misleading stats which claim 99.9% protection, but the trouble is

In the real world, the vaccines don't provide anywhere near 99.99% protection. There are some misleading stats which claim 99.9% protection, but the trouble is that they do stuff like including a whole bunch of deaths from the winter wave which ended before vaccines were generally available and ending before the recent Delta wave. Realistically you might be able to expect somewhere around 90% reduction in the risk of death which isn't nothing but also isn't close to 100%.