If I understand the doctor, lots of infections but very few deaths. A natural immunity due to low dose exposer has occurred, and now a herd immunity is taking place.
herd immunity = the vulnerable are already dead
Vulnerable = old + comorbidities + genetics
The last factor is generally ignored because other than “minorities hardest hit because Trump hates Blacks”, considering genetic factors would be racist. The fact is COVID-19 kills ethnic groups in the order they left east Asia or were never there.
Or it could be a weakening virus. Way back in mid May my friend, a doctor at a Long Island hospital told me the people being admitted then were far less sick than those admitted a month earlier and far fewer required ICU care. The staff at the hospital put it down as the virus mutating to a wesker form.