Vaccination

In the first ten days, there were no differences between the vaccinated and the unvacinated. Then after that, you start to see the differences that are increasing. And the vaccinated at a lower risk of college. But it cannot be because they are different from the unvaccinated,. Because if they have been different, we woul have seen those differences thefirst ten days. That is an example in which we can use something that we know about how the word works, or how the vaxin works word. It also shows that treatment outcomes and n t the selection, can depend on many, many other thingsOther than kind of the typical biological things such as eatment, symptoms