Any insight into where you came up with what I bolded?NYC has 27,000 people per square mile and is the outlier in North America. There is no other city like it in America that is so dense and relies so heavily upon subways and buses for public transportation.
Subways were the vector as this virus spread freely for weeks on the subway system. This virus is spread with prolonged exposure in close proximity to infected persons. Riders from The Bronx and areas outside of Manhattan spent over an hour each way on the subway systems with thousands of new people getting on and off at each stop.
Add to it the climate of NYC and the densely populated apartment buildings with people packed into 500-1000 SF apartments you have perfect Petri dishes for virus / community spread that does not exist anywhere else in the US.
The subways continued to run throughout the shutdown.
Then look at the poor health of many of the citizens. A full 94% of deaths in NY occurred with persons that already had serious health problems.
LA has 18 million people but it is more like one giant continuous suburb. Residents spend hours alone in their cars riding to work. Add in the sunlight and warmer temps and it didn’t spread as quickly but millions still caught it but we’re a asymptomatic.
Once we became educated about the virus and started using social distancing this became an effective tool to slow the spread combined with a far less dense population it became less dearly. I live in a 1 house per acre neighborhood.
Even with all of that there likely tens of thousands that already have had it here in TN too. Serological studies show 20x to 85x the reported infections have occurred. But It’s asymptomatic to 90+% of the people. Unlike NY We are not tagging every elderly person that dies of a heart attack as a Covid death unless they actually tested positive. Accounting for asymptomatic cases the hospitalization rate is sound .02% and the CFR is around .1% to .3% outside of NY.
Year over Year 2020 to 2019 even with 18,000+ Covid related deaths in NY there are only about 3,500 more deaths overall in NY than last year. This virus killed many of the same people that would’ve died of pneumonia or the flu or other causes last year.