Herd immunity, working just like always - and predictable. Only ambitious autocrats and their supporters think massive lockdowns can stop a viral epidemic - DUH! What happens when you open back up (IF you open back up)? --- Herd immunity.
I tried finding the link to this virus being released in 3 escalating stages, a friend of mine sent part of it. This current one is intended to mess with the election and schools as seen below. Well planned out.
The three stage scenario that you are probably referring to, is the first outbreak that we have already gone through. The second outbreak would occur shortly before the November election. This is to "guarantee" a lockdown and voting by mail. (The reason for mail voting is of course for an increase of illegal votes, but more importantly to intentionally stall the final count which may result in the temporary appointment of the President by the House of Representatives, and appointment of the vice president by the Senate.). I cannot recall hearing about the third outbreak, but the February/March time is the time frame for implementing the vaccination.. How things are going, I would expect that a significant amount of people will have been "red pilled" by then, and will be refusing the vaccination.