I guess a second wave in this case (China or anywhere post lockdown) is really just a re-animated first wave rather than an actual second wave (mutated version). The first wave was stopped / slowed and now it can get going again as restrictions are lifted.
I have no idea what I'm talking about though.
It could happen quite simply with a cluster that gets out of hand after restrictions are lifted. Unsure of the idea we can lift restrictions and keep spread controlled. Guess at some point the will of the economy will overpower the lockdown regardless, sadly.
I guess a second wave in this case (China or anywhere post lockdown) is really just a re-animated first wave rather than an actual second wave (mutated version). The first wave was stopped / slowed and now it can get going again as restrictions are lifted.
I have no idea what I'm talking about though.