Herd immunity would require that over 60% of the population in California had recovered from COVID-19. The numbers are nowhere near 60% of the population in terms of the number of cases (even making assumptions for the addition of unreported mild cases).
Bottom line - California and no other location has "herd" immunity at this time which would stop the wide-scale spread of COVID-19 across the population.
The only way to "open up" America in the short term is to mirror South Korea and get proper large-scale testing & tracing in place as soon as possible.
Herd immunity would require that over 60% of the population in California had recovered from COVID-19. The numbers are nowhere near 60% of the population in terms of the number of cases (even making assumptions for the addition of unreported mild cases).
Bottom line - California and no other location has "herd" immunity at this time which would stop the wide-scale spread of COVID-19 across the population.
The only way to "open up" America in the short term is to mirror South Korea and get proper large-scale testing & tracing in place as soon as possible.
They don't have cars so their grocery runs are much smaller hauls....basically whatever they can carry home. People with cars can stock up resulting in less of a need to go outside as often.The grocery thing should not be a problem, we all still go to the grocery and just follow social distancing, shoudl be easier in NYC as there is a grocery or market on every corner haha.
regarding herd immunity.
1. I read that some people working in hospitals get sick because of the viral load.
2. Is it possible if we get a small viral load... that we could start building antibodies without really getting sick?
If so, I do not think you can rule out that some herd immunity could be built up in localized areas. Like say the workers at costco.
or... for instance in january at my daughters school her and many of the kids were out with the flu, yet they did not test positive for the flu. If say a 20 percent of more of the of the school over a period of a few weeks got sick enough to stay home. Is it not possible many of the other kids in school were exposed and now are immune? And their familes.... and friends and relatives. Because I know my daughter and her friends were patient zeros for bunch of their family members.
You all really need to think about this stuff before you just print some stat they talks about society as a whole.
I am telling all right now... I went to costco a lot at first to buy food and toilet paper and because I love their cashews and Tilamook cheese. I saw the same people working there for weeks. they had no protection until about a week ago.
Now I noticed their workers tend not to be fat and out of shape. In fact many are fit.
If this virus were really and indiscriminate dangerous virus to all. Costco workers would all be toast. They see thousands of people a week in those places. But, somehow with all this non social distancing San Diego only had 45 deaths... as of yesterday.
Any thinking person... would have to look at this... and wonder if social distancing is only a small part of what has happened, because we really did not socially distance all that well. Most of us were out buying food without masks until last weekend.
I just read in business insider herd immunity depends on R0. The who apparently had this virus pegged at 2 to 2.5 R0 making causing the estimate for herd immunity to be 50 percent or a bit lower.
Now.. with my thesis having been all these estimates have been awful, in part because of China's bad data an in part because we had people pretending they could make useful models when they really did not have the data...
who the hell knows the R0 of corna virus. I would not be surprised if the R0 was significantly off for non compromised immune systems. Hence herd immunity in populations of healthy people might be a thing already.
All this is speculation... but something has to explain why the ramps were so wrong.