Wow....fascinating numbers.
Could it be viral load?
Here in Southern Cali, I am in some danger of being exposed to CV. But I think it would be a one time , freak exposure at this point.
I don't take a subway from home and back. I don't jump in taxicabs, sitting in a seat where 2 dozen others sat that same day. I don't walk down sidewalks in heavy crowded groups.
I am afraid that many patients in NYC had heavy viral loads when they got sick. And if you are exposed many times, with a few different types of the virus, you are screwed.
There are several mutations of the virus and both are active in the USA. Are there any cases of medical and health staff testing positive?