Is There a Mutation?

The starting formula was, if you take the number of infected people to day, and then you add point two. And then i'll put this in the description so people can just see it and look at it a little bit better. But minus a point one, because if each person is having it for ten days, that means that there there's people each a each day who are no longer infected and are immune. Then then when you throw in, ok, now, what happens when you have a mutation, and it seems some people are immune to it sometimes. And then you just kind of put that in, and that's how you can calculate what numbers might look like to morrow