Pedestrian |
Apr 3, 2021 2:38 AM |
Quote:
Originally Posted by someone123
(Post 9237191)
How do we know that there will be herd immunity or covid will go to 0? Many people may elect not to be vaccinated, there could be some immune escape, etc. My guess is we'll see outbreaks for years to come, but the spread and consequences will be much smaller.
I think the public health aspect of this will end when everybody has had the option to get vaccinated. At that point we should move to a regime based on personal choice. If people don't want to get vaccinated and would rather risk covid that's their choice. If they have unusual health requirements they are better dealt with individually rather than locking down all of society. In fact the proper functioning of society is what allows us to have the wealth to have elaborate health care services. I doubt that the current situation is sustainable.
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It will be like measles, mumps and polio: The diseases will still exist but there won't be a steady stream of cases, only sporadic outbreaks of a size that allows rigorous contact tracing and isolation of the infected.
It will be somewhat like what we are seeing in places like South Korea or New Zealand but a better example is Israel, a place that had a severe epidemic and has brought it under increasing control by vaccinating the majority of the population (in spite of resistance in the Orthodox community) although even there the job isn't finished--they are approaching herd immunity but haven't yet reached it (though as I keep saying, it's a thing with a gradual slope, not a sudden demarcation):
Quote:
New COVID-19 cases drop to lowest weekly level since last June
With economy largely open and most Israelis vaccinated, positive test rate falls to 1%; serious infections hit a three-month low
By TOI STAFF
2 April 2021, 11:54 am 0
The number of weekly new coronavirus infections dipped to the lowest level in Israel since June 2020, as serious cases hit a three-month low according to data released Friday.
According to the Health Ministry, only 2,479 new cases were discovered in the past week, compared to 5,011 the week prior, marking the lowest weekly tally in ten months.
The number of COVID-19 patients in Israel in serious condition dropped to 368 as of Friday, the lowest rate since December 2020. The number has been on a steady decline for several weeks, after climbing to an all-time high of 1,201 in mid-January.
The basic reproduction number, the daily share of positive coronavirus test results, and the number of active cases have all been on a several-week downward trend.
The number of active cases further fell to 6,581. Thursday’s results, which came from 35,768 tests, represented a positive infection rate of just 1 percent — amounting to 331 new cases.
The virus’s basic reproduction number was at 0.61. Any figure under 1 means the outbreak is abating. The figure represents the situation as of 10 days ago due to the incubation period.
With no deaths reported overnight, the toll stood at 6,220 on Friday morning.
Israel has so far vaccinated over 4.8 million people — or over 51.67% of its population — with two coronavirus vaccine shots. About 56.49% of Israelis, more than 5.2 million, have received at least one vaccine shot.
When it comes to vulnerable populations, these numbers are much higher. Over 90% of all Israeli residents over 50 are fully inoculated with two vaccine shots or had recovered from the virus.
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https://www.timesofisrael.com/new-co...nce-june-2020/
That reproduction number of .61 is critical. That means every case spreads it to .61 other people. In other words, over time there should be fewer and fewer cases, eventually getting to or near zero except for the occasional imported case or other exceptional incident.
When there are zero regularly occurring cases, then even the unvaccinated will be pretty safe as they are in New Zealand. But as we repeatedly see with measles (a much more infectious virus even than coronavirus), occasional cases pop up from travelers and others and the only way to keep the virus suppressed aside from rigorous contact tracing and quarantine in getting the highest possible percentage of the population vaccinated.
If we take your position that it's simply a matter of personal choice, it's quite likely we will never entirely suppress regular cases meaning people who, for one reason or another can't be vaccinated will remain at risk. That's the point of "herd immunity"--to protect even the "can't be vaccinated". In free democratic societies we will never force people to be vaccinated but we can certain apply tough incentives as we do with children who are not allowed to attend public schools without their "shots" or travelers to places where cholera or Yellow Fever have been endemic who are not allowed entry unless they can demonstrate immunization. As I've said, with COVID, at least for now, I'd go further: No entry to any indoor venues where there are crowds like concert halls, sports arenas and so on. Possibly even restaurants. According to my TV, the Washington DC baseball team was only allowing fans to attend their season opener (before it was cancelled due to an opposing player getting COVID) who can show vaccination. That's what we probably should do for a while at least.
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