I don't believe it is a good thing for virus cases to drop to near zero over the summer. IMO that is exactly the time we need to "make hay" and get the global herd immunity numbers up where they need to be. By any estimate you care to quote we are not even close to a minimum for "herd immunity". This Spring and Summer is precisely the period of time we need the case numbers to maintain a steady pace. If that happens, then by Fall we would be in a much better position to face a recurrence of China virus. I have this wrong, tell me why.
We don't know how long immunity lasts after we've been infected ... only with
some viruses are we protected for life ... others wear off after months or years ...
We
do not know about this new SARS-CoV-19 virus ... catching it now and recovering may well still leave us at risk next Fall ... and, unfortunately, these Coronavirus family members general only allow a few months protection ...
Herd immunity comes from having the vulnerable die off and not breed this vulnerability into their offspring ... "cleansing the gene pool" ... I just heard on the radio that over 50% of the Covid-19 deaths in New Jersey were in nursing homes ... herd immunity in action ...