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1)I think a fair case can be made that certain US regions, especially NYC, have achieved herd immunity. I& #39;ll lay out the key elements of that case over the next few days, seeking support or refutation from others. Here I& #39;ll focus on one question: Can herd immunity be achieved...
2)...even though only a minority have been infected? Eminent epidemiologist Michael Osterholm @mtosterholm seems to think 60% must be infected & NYC is nowhere near that. But maverick epidemiologist Knut Wittkowski (who firmly believes there& #39;s herd immunity in NYC) tells me:...
3)..."There are 3 different mechanisms by which we can become immune. And they& #39;re mediated through antibodies against infection w/the particular disease, antibodies against infections with similar diseases--and then we can have T-cell immunity, where we harbor T-cells,...
4)...not antibodies, against that disease. And all 3 forms can contribute to immunity." So the first kind, direct immunity, might arise from a 20%-25% infection rate, while the other two kinds can do the rest to achieve herd immunity. Mayo Clinic Dr. V Rajkumar @VincentRK...
5)...& Stanford Biophysics Prof. Michael Levitt
@MLevitt_NP2013 seem to agree w/Dr. Wittkowski. Are there others? Contrast this with statement from the NYC Mayor& #39;s Sr Advisor @DrJayVarma: "The vast majority of New Yorkers weren& #39;t infected. So the most likely explanations for...
@MLevitt_NP2013 seem to agree w/Dr. Wittkowski. Are there others? Contrast this with statement from the NYC Mayor& #39;s Sr Advisor @DrJayVarma: "The vast majority of New Yorkers weren& #39;t infected. So the most likely explanations for...
6)...our current situation are, as the mayor pointed out, physical distancing, wearing face covers, good hygiene — and the massive increase in testing that& #39;s tied to identifying contacts and safely separating cases with contacts." Having seen photos of grubby-looking people...
7)...w/no face coverings, who slept in tents in front of City Hall, I gotta wonder about the uniform practice of good hygiene! And this NY Times article questions the effectiveness of the contact tracing. Yet NYC& #39;s numbers remain quite low. Herd immunity? https://www.nytimes.com/2020/07/23/nyregion/coronavirus-testing-nyc.html">https://www.nytimes.com/2020/07/2...
