Sure, let's critically evaluate the guidance put forward by our public health institutions, but quoting a statement from Norway's equivalent institution without the backing evidence doesn't make the US "wrong". If the evidence available on the efficacy of vaccines for kids is so ridiculously wide that it goes from -99% to +370% risk of infection, then surely Norway is _also_ drastically overstating its case when it says (about kids) "previous infection offers as good of protection as the vaccine against reinfection" esp since it _also_ seems like the protective effect of prior infection is both uncertain and changing.
How about flatly declaring that guidance was "wrong" about school closures because minority and poor kids did markedly worse at math? Obviously these decisions are complex trade-offs, and one can't conclude that the choice was "wrong" simply by pointing out one of the costs.
How about quoting a CDC scientist, who cannot possibly have strong evidence when making the prediction "CDC guidance worsened racial equity for generations to come. It failed this generation of children." Generations to come? Show us the data that lets this scientist predict the far future with such confidence.
I get that it's deeply unnerving when these institutions make sweeping recommendations based on less firm data than we would normally demand. But not recommending anything, or not taking decisive action because of the limited data would _also_ have been irresponsible. When schools first closed, we didn't know a lot of things, but it would have been pretty reckless if agencies said "well this is putting a lot of people in the hospital and spreading fast, but we don't have the data to give definitive guidance yet, so you're on your own. Depending on the range of things your communities choose, maybe in a few months we'll have the evidence to say something."
The protective effect of prior infection is not uncertain, nor is it changing. There have been dozens of papers now, all saying the same thing: natural infection is at least as protective (if not more so) than even 3 doses of the current vaccines. If you are hearing otherwise, you are being misinformed. Full stop.
Here's the latest paper in a long line of consistent evidence, last week in the NEJM:
https://www.nejm.org/doi/full/10.1056/NEJMoa2203965
> No discernable differences in protection against symptomatic BA.1 and BA.2 infection were seen with previous infection, vaccination, and hybrid immunity. Vaccination enhanced protection among persons who had had a previous infection. Hybrid immunity resulting from previous infection and recent booster vaccination conferred the strongest protection.
Norway is saying what it is, because we know that most people -- vaccinated or previously infected -- will eventually get re-infected. But even if you are re-infected, you will be well-protected against severe illness.
That said there are conflicting studies: “This report details the findings of a case-control evaluation of the association between vaccination and SARS-CoV-2 reinfection in Kentucky during May–June 2021 among persons previously infected with SARS-CoV-2 in 2020. Kentucky residents who were not vaccinated had 2.34 times the odds of reinfection compared with those who were fully vaccinated (odds ratio [OR] = 2.34; 95% confidence interval [CI] = 1.58–3.47).” https://www.cdc.gov/mmwr/volumes/70/wr/mm7032e1.htm?s_cid=mm...
The nuances are complicated. False positives are a real concern for people avoiding vaccination. People that survive the first infection without vaccination are a meaningfully different population than the vaccinated population. Similarly people that get vaccinated after infection have received vaccination more recently etc.
But also, it was just methodologically flawed -- they didn't bother to correct for the bias that people who were vaccinated after infection in early 2021 were probably behaving differently than those who had not been vaccinated at that time.
If you're going to cite an old MMWR article as "evidence" against the now overwhelming pile of papers demonstrating that the immune system works pretty much as we expect from immmunology 101, don't forget that in early 2022 they released this much better, much larger (N=1.1M people) cohort study, which dramatically showed the opposite of what you're claiming. Prior infection obviously provided robust protection against Delta, on par with the vaccines:
Saying a study is garbage when you disagree with the results is not how evidence based medicine works. Unless there was actual fraud or gross incompetence, every study should provide something of value.
Hypothetically, if vaccination provides enhanced short term protection for people after catching COVID which also provides short term protection then recommending waiting X months after getting COVID to get vaccinated is one option. Alternatively, if post COVID vaccination did absolutely nothing then you could recommend skipping it, ignoring false positives.
1) in retrospect it was obviously incorrect, and
2) even at the time, a reasonable scientist could have concluded that it was flawed
I don't generally call papers "flaming garbage", but some are so egregiously, transparently awful -- at the time of publication -- that saying otherwise is dishonest. That MMWR study was one.
Your only complaint relevant at the time of publication was people that where vaccinated acted differently, that’s also true of the study you linked. It wasn’t double blinded making it “hot garbage” by your logic. Presumably the only reason you linked it was it didn’t contradict your assumptions, even though it failed to address the actual question of how useful post COVID vaccination is.
Except we care about real world outcomes so a double blind study would be less relevant making your original complaint pointless.