Ok. Let’s use the context dependent definition of herd immunity, and look at behavior. People this time.
Spain looks to be herd immune. Still some cases, but outbreaks mostly fizzle out.
Now suppose the party scene really gets popular in Madrid this year. Too much time cooped up, and it’s time to be social. More people, more alcohol, more hookups, less distance. All of a sudden, you have spikes in a variety of diseases, including covid.
What happened? The herd immunity threshold changed. People who used to be keeping 6 feet are now adopting a different behavior. Put one way, people got closer to each other and disease spread more easily. Put another way, people changed their behavior and that altered the herd immunity threshold.
”Can we acheive herd immunity with a 60% vax rate and 2019 behavior patterns” is a perfectly reasonable question.It didn't change. The baseline you have to assume is normal human behavior. If NPIs are holding down infection rates and infection spike, they aren't at herd immunity under either definition (a) no more COVID or (b) low levels of endemic infection without spikes. Again, YOU may be happy living with restrictions in perpetuity. Most of the world is not because it's NOT part of the human condition. Otherwise what you are suggesting is NPIs forever, which BTW some of us from time to time have accused you of wanting and this is another piece of evidence that shows that yeah maybe you'd be totally fine with that. Finally, you are being antiscience....not even Fauci is using your definition....even espola's definition was better and more realistic.
”Can we acheive herd immunity with a 60% vax rate and 2019 behavior patterns” is a perfectly reasonable question.
It is just a different question from “can we achieve herd immunity”.
You claim to be asking the second, then insist on pivoting to the first.
No you are just making selective definitional changes to support your world view. No one considers a world with ongoing NPIs being necessary to maintain the status quo "herd immunity". You are going your magic wand waiving seeking to distinguish stuff to protect your world view, in this case when even Fauci has moved on.
And no one is asking about the 60% rate. The relevant subjects for vaxxed immunity were Singapore, Iceland, Ireland. For natural immunity, the one to watch is India. England now has 95%+ seroprevalence in adults....still not at herd immunity.
Area under the curve. Not moment in time. How does the total number of cases in VT rank?Well for Gibraltar dad had an excuse as to why cases were surging. It was the tourists fault.
Well what about VT? Highest vaxxed state in the nation.
Certainly looks like breakthrough cases are not rare.
Vermont is one of the most vaccinated states in the country and has served as a model for its COVID-19 response throughout the pandemic. But now, the state is experiencing its worst COVID-19 surge yet, with several factors -- including its own success -- to blame, officials said.
In Vermont, nearly 72% of residents are fully vaccinated against COVID-19 -- more than any other state, according to U.S. Centers for Disease Control and Prevention data. At the same time, it has the 12th-highest rate of new COVID-19 cases over the last week, state data released Tuesday shows.
Vermont has seen a "significant" increase in COVID-19 cases in the past week, Mike Pieciak, commissioner of the state's Department of Financial Regulation, said during a press briefing Tuesday.
The seven-day average for COVID-19 cases rose 42% as of Tuesday, according to state data.
Here they talk about the fact that a lack of natural immunity could be an issue.
Regarding the recent case surge, Vermont may also be a "victim of our success," Levine said Tuesday, pointing to a lack of natural COVID-19 immunity among unvaccinated residents "because we kept the virus at such low levels throughout the entire pandemic."
Vermont has the highest vaccination rate in the country. So why are cases surging?
Why COVID-19 cases are surging in Vermont, which is one of the most vaccinated states in the country.abcnews.go.com
Singapore isn’t doing permanent NPI. They were just smart about when to relax NPI. First NPI, then vax, then relax NPI.
The “relax NPI” step causes a case spike. A very small case spike that causes few deaths because it is a very heavily vaccinated country. So what?
Seems to be working out just fine for them. They will end up with a low case rate, low NPI endemic steady state that is dependent on some amount of boosters and new vaccinations. Sounds like success to me.
Area under the curve. Not moment in time. How does the total number of cases in VT rank?
So far, they have the second lowest total case rate in the nation. And they have the lowest covid death rate in the nation.
I’d say VT is doing ok so far.
Did a miss a memo where each of us tries to find the worst possible example to prove our point? First Grace brings up Singapore to argue against mask and vaccines mandates. Now you’re trying to point to Vermont as an example of failed covid policy.
Dang. Time for me to get with the program and launch the Chernobyl Initiative for Nuclear Power.
You are again missing the point.
The question isn't whether Vermont is doing better. Of course a highly vaccinated place will do better in death, hospitalizations and even cases. Vaccines good.
The question is whether a highly vaccinated place can have a spike (and therefore is not at herd immunity) despite the vaccines, and how prevalent are breakthrough infections (which you yourself identified as the $1,000,000 question).
I respectfully disagree. This is not reasonable to me.”Can we acheive herd immunity with a 60% vax rate and 2019 behavior patterns” is a perfectly reasonable question.
We are at a 60% vax rate. People would like to return to 2019 behavior. Most are.I respectfully disagree. This is not reasonable to me.
I didn’t miss your point. I just don’t agree that your point is at all important.
Yes, small case spikes are possible when circumstances change. Singapore had one. Vermont is having one. China will have one when they relax. Exactly as predicted by the models.
So what? You start at herd immunity, environment or behavior change, transmission rises, cases go up for a bit, natural immunity rises, cases fall, and you reach herd immunity again.
If you are the head epidemiologist for Singapore, this cycle deserves your full attention. For anyone else, why would you pick this to care about? We have a lot of work to do before we think about the case spike from ending NPI in a fully vaccinated population.
We are at a 60% vax rate. People would like to return to 2019 behavior. Most are.
Herd immunity under a 60% vax rate and 2019 behavior is where we are headed. Might as well ask what that looks like.
Ok, definitely my misunderstanding of what you were implying.We are at a 60% vax rate. People would like to return to 2019 behavior. Most are.
Herd immunity under a 60% vax rate and 2019 behavior is where we are headed. Might as well ask what that looks like.
You did miss the point.I didn’t miss your point. I just don’t agree that your point is at all important.
Yes, small case spikes are possible when circumstances change.
I’d certainly prefer we all choose a 95% vax rate, upgraded ventilation, and cloth masks for flu season. A lot fewer deaths that way.Ok, definitely my misunderstanding of what you were implying.
From my perspective, any definition of herd immunity should be based on what was normal behavior before the pandemic.