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Originally Posted by Shuffle
There are ~7 million cases and over 200,000 deaths in the U.S. Most of them during Spring and Summer when R0 should be way lower and case severity milder. What do you think will happen when communicability and mortality rates increase?
There's your problem right there. You're confusing confirmed cases with actual cases. No wonder you think the immunity boost is tiny.
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You have no idea what R0 should be during winter. The Chinese data is fabricated.
Thankfully we have data from Italy, Spain, France, New York, and so on. Which spread in February which is the coldest of winter. March is when flu infections are their worst. It's peak spread time. We have the data, sir, robustly analyzed across multiple countries. We know what R0 is in winter.
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It's likely many or all areas will experience a much greater increase in communicability than the tiny decrease that has occurred through immunity -- which, by the way, may no longer exist.
Why do you think the decrease through immunity is "tiny"? 20% of the most active nodes immune in many US cities and suburbs is huge. Queens and Kings are over 30% immune. Visualize a vast node network in your head connecting people with potentially infectious routes in a decentralized manner. Now imagine 20% of the most active nodes being immune (blocked from spread). R plummets from 3 down to well below 2. With the current distancing it gets close to 1. It's a big deal, and is the difference between the explosion that happened in say NY and a slow manageable burn that never overwhelms and doesn't kill many.
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Again, you're failing to distinguish between effective social distancing in Summer and effective epidemic controls during colder temperatures and lower indoor humidity levels. You're suffering from a recency bias.
I'm not suffering from anything. R has been moved from 2 to below 1 in summer quite easily in many places with no lockdown. R can be 2 in summer. It's at most 3 in winter. There isn't some giant differential here. Not is distancing in winter that different to summer when it comes to inter-node-group spread.
You have this strange idea where R is disastrous in winter. It's not. It's 3.5 at worst, in an environment where no one is immune, no one does any distancing and just acts normally. It's far lower when they don't act normally. It's not some superspreader bug, it's moderately infectious but it's far less infectious than other diseases like measles.
What's more, a good deal of the spread from the first wave was caused by superspreader events - large indoor events with lots of face to face contact and spittling. The Boston conference for example spread it over much of the US. Most of those are shut down now until corona is over, as are bars, indoor dining, etc when things worsen. Lots of people are working from home. The sick are isolating a lot more (no one isolated in the first wave). Public transport is used less and it's masked. R will be way lower than last winter just from behavior. There just isn't the mechanism for last winter's high R any more.
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I've also never seen you make a single post differentiating the mortality rate between climates, weather, latitude, etc. On the contrary, you rather ignorantly tossed around blanket numbers earlier in the pandemic, and now you are dismissing the 40,000 case baseline and even seem to welcome it.
I explained why R matters a lot more than baseline. You and Cuepee both lack the intuitive and specific understanding of math to understand why. I can't do anything about that unfortunately.
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Do you think it's impossible or unlikely that 10% of the U.S. could become infected in the next 6 months?
Over 10% have already been infected. We saw the results of that.
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And that the death rate could climb from 2% to closer to 10% from seasonal changes alone?
No, because we know what the death rate is in the worst of winter - it's about 1% if hospitals don't overwhelm. Where are you getting this fanciful 2% to 10% death rate from seasonal changes??
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That's 4x cases in the next 6 months. You seem to think behavioral changes will mitigate the spread.
There's no question it will, substantially. Add in substantial immunity and the US is in good shape.
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I'll take the opposite side of that-- the population seems determined to react even more irrationally over time.
The US response seems to have been the most rational. From a birds eye view:
- Lock down to prevent overwhelming when little about the virus is known and deaths are soaring
- Let people go about their lives once it's under control and monitor it
- As a great side effect of the above, have it burn through the young/active nodes as much as possible to get winter R down, to let people live their lives, and so the economy survives and thrives
Should people cower in their homes for the summer because of a minuscule chance of death if they're not old or ill? Should they not live?