Waves and Waves and Waves and Waves and Waves
Some European countries are in wave two, some wave three, some wave four and some wave five.
So what separates these waves?
Mostly, partially-successful-lockdowns.
Each time a country goes for a lock down, after a while the figures drop.
Then, they stop the lock down and the figures go up.
So what wave you are in, is mostly determined by how many lock downs you have imposed.