There ought to be statistical evidence now of whether and how much vaccinated people still get sick from Covid and its variants. Why do we still hear that epide

There ought to be statistical evidence now of whether and how much vaccinated people still get sick from Covid and its variants. Why do we still hear that epidemiologists have no idea about this? How much energy do you want to put into tracking so that you can draw better conclusions? We have good evidence that people don't become symptomatic, because that is easy to track. But we haven't generally been constantly testing to see how many caught it and fought it off. Or how many could have spread it to unvaccinated people while they were asymptomatic. Which are both very useful for epidemiologists to know for modeling purposes.