unome -> RE: Covid 19 and those infected (8/9/2020 4:22:35 PM)
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quote:
ORIGINAL: Brad H quote:
ORIGINAL: unome Switching back to COVID, I read a piece on Afghanistan, of all places, and it seems like the COVID cases there have really gone way done. Now, it is hard to know how accurate these numbers are, because the testing is so low, but looking at the numbers in this article, and the fact that their reported numbers have gone way down and I have to ask: has Afghanistan showed us what happens when a country reaches herd immunity? https://www.voanews.com/south-central-asia/10-million-afghans-likely-infected-and-recovered-covid-19-survey Nearly a third of the country infected and recovered and 53% in Kabul sounds like what you might expect from herd immunity. Herd immunity has been calculated by mathematicians at 43%, but that is sort of a general principal than something that makes sense in reality. In reality, it makes sense that you would need a higher number in dense urban areas than in less dense rural areas. Also, herd immunity significantly slows the spread, but it does not end the disease. The CDC estimates that there have been 10x the number of COVID cases in the US than what have been reported, so that could put the US at 50 million cases. So, we are not real close to true herd immunity yet. However, herd immunity is also a gradual thing. The states and countries that have had high death rates from COVID had huge numbers of uncounted cases that happened before there was testing and developed the start of herd immunity. If these areas also follow up this partial herd immunity with mask usage, social distancing and keeping high-risk activities shut down, there could be a lower effective herd immunity rate that may be achievable once an area gets to a number lower than 43%. How much lower? It is hard to know and it likely depends on how good people do on mask-usage and social distancing. We might not be too far away from slowing this thing down significantly IF people wear masks or socially distance. The median age of a person in Afghanistan is 18.9 years old. The median age in the United States is 38.1. We have a much older population. In other words, out of 240 countries, Afghanistan ranks the 24th worst country in the world at keeping people alive (bottom 10%). If we were to try and reach herd immunity, we would have far more dead people than Afghanistan trying to reach herd immunity. Perhaps we should think more about what the United States is doing (or not doing) than what Afghanistan is doing. They don't have a great history of keeping people alive. It is like comparing apples to oranges. My other suggestion to you would be to move to Afghanistan. Perhaps they are of kindred spirit. You completely missed the mark. I am not holding up Afghanistan as the model to emulate. Nothing in what I wrote even vaguely implies that. My point was that we might be seeing what happens when herd immunity is reached. This does not mean we should actively try for herd immunity. You missed everything important in what I wrote to concentrate on what I did not even write at all. You would think being that off-base would be hard to do. How do you do it time and again?
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