Israel Vaccine Efficacy anomaly over time

in COVID-193 years ago (edited)

Hello, Hive world!

I'm (the) Mikky, a data analyst from Israel. I was inspired to make this post because of @ura-soul's comments on Israeli vaccine data.
As someone who has swum in the sea of Israeli data over and over again, I feel the need to share my 0.02 HIVE.

Here I analyze a strange anomaly in the vaccine efficacy over time, specifically those whose vaccines expired.
If I find that this post peaks interest, I'll post more analyses. Comments, suggestions and criticism always welcome.

Foreword

To try to defeat as many biases as possible,I took the already normalized data from the MoH (Ministry of Health) dashboard (link below) by:

  • Vaccination status (unvaxxed, vaxxed + expired (6 months), vaxxed + not expired)
    No data on recoveries. These are data limitations, unfortunately
  • Only 60+ to avoid age-dependent bias
    I know that 60 is not 80 is not 100, but these are the data I was given
  • Normalized per population size of each vaccination group
    This is a huge pain in the *** to do on your own as the population sizes constantly change, so I'm glad that the MoH did this for me

Side notes:

  • We started vaccinating boosters around 1st of August.
  • I look at 2-week averages to get a cleaner signal, because any individual day doesn't tell us a general trend.

Back to the anomaly

Look here - notice that those whose vaccine expired reach a peak around end of August and then drop rapidly, while the unvaccinated keep getting severely ill?
This means that per capita, the expired-vaccinated start to get severely ill at lower rates, while the unvaccinated keep getting severely ill more and more.
One can't say that this has to do with the vaccine making their sick stays shorter while the unvaccinated linger - because this graph shows how many people were new admissions to severe status.

image.png

Vaccine Efficacy

OK, that's odd - but let's see how this reflects the status of VE (Vaccine Efficacy, sold to us as 95% effective) over time for expired vaccines.
For those who don't know, a 95% VE works something like:
If out of 100 unvaccinated people, 20 will get severely ill, then at 95% VE we expect that 100 vaccinated people, only 1 will get severely ill. At 90% VE, 2 severely ill, 50% VE, 10, etc.

Notice the extreme drops in VE (blue/orange lines), followed by an uptick?
Vaccine efficacy shouldn't be such a time-dependent variable - or at least, it should follow a logical pattern over time.
image.png

Drop in non-expired VE (blue)

I am somewhat willing to forgive the drop of non-expired vaccinated when there were near-to-no patients in the wards, making statistical analyses flimsy at best.
Also, these "not expired" vaccinated patients may have been 5.5 months after their dose, so the VE will have dropped quite a bit by then.

Drop in expired VE (orange)

This makes no sense. Israel started giving boosters, so in raw figures, sure - there are less people who have expired vaccines, are better protected, and therefore less likely to get severely ill.
But at rates normalized for population size?
The (absurd) explanation would be that people getting boosters somehow make the expired vaccinated less likely to get ill. One could say "herd immunity!", but then we would see this drop in the unvaccinated as well, but we see the opposite.

Conclusion

My most optimistic explanation is that everyone who's at risk got boosters, whereas people who are healthier decided to forego the booster, meaning that instead of a pool of "everyone", the expired vaccinated became a pool of "healthy people who don't need a booster" (or say, recovered). I find this highly unlikely but can't prove or disprove it due to lack of data.

My pessimistic explanation is that the numbers are being toyed with. Perhaps criteria of severely ill differ between vaccination groups, perhaps they started pooling unvaccinated car accidents that tested positive for Covid as "severely ill". I really don't know - but I find these findings to be really bizarre and inexplicable.

Appendix

I invite anyone who wishes to, to use the following MoH resources if they choose, though the language barrier could be a problem. PM or reply if you want translations of terms.

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Excellent work and I can't wait to see more quality content from you so I'm going to run over and hit the follow button.

Excellent work on getting this put together. I can't wait until the truth of the matter comes out and we understand what is really happening in the world with this virus.

From all the research that I have this originally started in the United States and was closed down as part of the issues with fort detrick.

Yep basically national institute of health paid the infectious diseases institute of Wuhan to conduct gain of function research with our own tax dollars.

Many thanks! Your name is intriguing :) I never got into growing (I'm a plant serial killer) but I saw a few of your posts on Portland... didn't know things were Los Angeles-level bad there.

Let's hope that the truth comes out sooner than later, but in reality I fear we will see a "oh well, we did what we had to do and paid the price we had to pay" with a shrug. There would have to be a mass extinctions event for the legal powers that be to actually get off their ass on this matter, I'm afraid.

I would love to comment on Wuhan gain of function research, but it is simply way outside my scope of knowledge. Let's just say that I wouldn't be surprised in the least if this was all planned.

I'm going to have to run over and follow your blog.

Thanks for the comment and it's kind of ironic that when the United States had banned gain a function testing they just exported it to China and paid them a fraction of what it cost in the United States to do.

Which as a result end up in a lab leak....

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Welcome welcome.

Excellent analysis!

So the conclusion is that you can't trust the data because the issue has become severely politicised and the government wants to push up the number of so called unvaxed severe cases and deaths in order to scare people into taking the jab.

Many thanks!

Indeed, the most frustrating thing here is "something is weird", and it's never clear exactly WHAT is going on. Whenever you think you see a pattern, it starts to act bizarrely. My only explanation is politicized data.

The fact that the narrative keeps changing according to circumstances makes it an even harder rabbit to catch. I'm assuming that if there was low uptake of boosters, they would start making it seem as if the partially vaccinated are dying like flies while the fully vaccinated are enjoying beach cocktails

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