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This message was self-deleted by its author (hamsterjill) on Thu Sep 2, 2021, 02:53 PM. When the original post in a discussion thread is self-deleted, the entire discussion thread is automatically locked so new replies cannot be posted.
PoindexterOglethorpe
(28,493 posts)People keep on trying to trash the J&J shot, but it looks like it's even better than the others.
(Feeling smug. Got the J&J.)
Response to PoindexterOglethorpe (Reply #1)
hamsterjill This message was self-deleted by its author.
PoindexterOglethorpe
(28,493 posts)Maybe there was something better in the one and done in the first place.
I will honestly say that at the very beginning I didn't fully understand why two shots were needed. But, not being a medical person, who was I do question that?
I am almost always masked when out in public. I have the good fortune to live in northern New Mexico where most people are still masking, which is nice.
StarryNite
(12,150 posts)That's a great way to describe it. Some on here have even suggested that the ones of us who got the J&J should go get a booster of one of the other vaccines. If the mix and match is fully tested and the doctors and scientists tell us we should do it then I would certainly get one of the others as a booster. But it doesn't seem right that people on here who are not scientists or doctors are recommending it at this time. Some do act like it's a competition between the vaccines and that as you so aptly put it, the J&J is the "ugly stepchild of the vaccines". I sincerely hope all the vaccines are safe and effective for now and for other variants as they come along. This pandemic is far, far from over.
I too continue with all the safety precautions, it's the prudent thing to do.
Response to StarryNite (Reply #6)
hamsterjill This message was self-deleted by its author.
Response to hamsterjill (Reply #3)
StarryNite This message was self-deleted by its author.
smirkymonkey
(63,221 posts)I got the J&J shot and I am finally glad to hear some positive news for once.
Response to smirkymonkey (Reply #2)
hamsterjill This message was self-deleted by its author.
Response to hamsterjill (Original post)
Celerity This message was self-deleted by its author.
Celerity
(54,695 posts)and only a 71% effectiveness rate in terms of prevention of hospitalisation, when it come to Delta.
That is what this massive study (almost 500,000 people) is showing. No clue how this is being spun as a good thing.
Just a few days ago (to go to the other end of the spectrum on claims), you had people here ludicrously claiming that the Pfizer vax was 99.924% effective against ALL simple transmission, lol.
Now are we to think that people will magically accept only a 91% to 96% effectiveness rate against death? Or accept only a 71% effectiveness rate that you do not end up in the hospital?
For ages the US (and other nations TBF) has been telling people there is almost no chance at hospitalisation or death if you are fully vaxxed. These J &J numbers are FAR from that against Delta.
I strongly remember people (including some on DU) very unhappy when the numbers for the J&J vax were around 72% (some studies showed as low as 66%, see below) efficacy against simple transmission of the much weaker origin strain:
https://www.nytimes.com/2021/07/01/health/coronavirus-johnson-vaccine-delta.html
The frustration was building even before the Delta variant emerged. The Centers for Disease Control and Preventions guidance that vaccinated people could forgo masks indoors in many situations, for instance, was based mostly on data for mRNA vaccines. And reports of a cluster of infections among players on the Yankees baseball team who had received the J.&J. shot did nothing to assuage fears that the vaccine might be inferior to others.
Martha Young, 63, of Mountain View, Calif., received the J.&J. shot on April 9. It was not her first choice, but it was what was being offered. But since then, she said, Ive been very, very frustrated by the lack of information.
She added, referring to the J.&J. vaccine, I felt like I didnt count, like I was statistically insignificant because so few of us have the shot that they didnt have to worry about us.
Some people who were immunized with the J.&J. vaccine complained that they felt cheated by experts who had said the vaccines were all equally good. I was surprised to see others making this claim, said Natalie Dean, a biostatistician at the University of Florida. I didnt like it. People dont want to feel misled.
But other experts said the clinical trials should have made it apparent that the efficacy of the J.&J. vaccine was lower than that of the mRNA vaccines. Seventy-two percent is of course lower than 95 or 94 percent, said Florian Krammer, an immunologist at the Icahn School of Medicine at Mount Sinai in New York.
.
More on that SA study, in terms of death prevention
https://www.reuters.com/article/health-coronavirus-safrica-idAFL8N2P618W
"We can report that the single jab J&J vaccine protected between 91% to 96.2% of healthcare workers against death," Gray said.
"This was our primary endpoint and we are able to say this vaccine protected health workers against death."
Here is a US study (with the caveat of it not yet finishing peer-review)
Also, that 33% efficacy highlighted is against having symptomatic disease, the actual numbers for stopping any transmission are even lower:
Johnson & Johnson Vaccine Far Less Effective Against Delta Variant, Study Suggests
https://www.forbes.com/sites/nicholasreimann/2021/07/20/johnson--johnson-vaccine-far-less-effective-against-delta-variant-study-suggests/?sh=609a376f4299
A study from a team of New York University researchers found the one-shot Johnson & Johnson vaccine is far less effective at preventing coronavirus infections from the Delta variant and other mutated forms of the virus than from earlier strains, a concerning find since the Delta variant now accounts for almost all U.S. Covid-19 cases.


J.&J. Vaccine May Be Less Effective Against Delta, Study Suggests
Many who received the shot may need to consider boosters, the authors said. But federal health officials do not recommend second doses.
https://www.nytimes.com/2021/07/20/health/coronavirus-johnson-vaccine-delta.html
Although troubling, the findings result from experiments conducted with blood samples in a laboratory, and may not reflect the vaccines performance in the real world. But the conclusions add to evidence that the 13 million people inoculated with the J.&J. vaccine may need to receive a second dose ideally of one of the mRNA vaccines made by Pfizer-BioNTech or Moderna, the authors said.
The conclusions are at odds with those from smaller studies published by Johnson & Johnson earlier this month suggesting that a single dose of the vaccine is effective against the variant even eight months after inoculation.
The new study has not yet been peer reviewed nor published in a scientific journal. But it is consistent with observations that a single dose of the AstraZeneca vaccine which has a similar architecture to the J.&J. vaccine shows only about 33 percent efficacy against symptomatic disease caused by the Delta variant.
Ad26.COV2.S is the full name of the J & J vax, BNT162b2 is the Pfizer vax, mRNA-1273 the Moderna vax


Table S2. Neutralization of viruses by sera from BNT162b2, mRNA-1273 and Ad26.COV.S vaccinated individuals.
(my add: SD means standard deviation from the mean, the lower the SD, the closer to mean the results (also called the expected value) are in terms of distribution)



madville
(7,857 posts)That's one thing the news does a horrible job with, explaining these numbers. When people see something like "it's 95% effective at preventing death", many think that means that 5 out of 100 people are dying and 95 out of 100 will live (which would be worse than the current numbers for unvaccinated people). Same with the other number, "70% effective at preventing hospitalization", that doesn't mean 30 out of 100 vaccinated people are getting hospitalized.
It means that it's 95% more effective at preventing death or 70% more effective at preventing hospitalization if infected VERSUS being unvaccinated and infected.
I think about it like this, say 100 out of 1000 unvaccinated people that get infected get hospitalized. If the J&J vaccine is 70% effective at preventing that then 30 out of 1000 vaccinated people that get infected would require hospitalization. Same with the 95% effective at preventing death stat, if 20 out of 1000 unvaccinated people that get infected are dying, then only 1 out of 1000 vaccinated people that get infected would likely die because it's 95% more effective at preventing death versus being unvaccinated.
LisaL
(47,467 posts)We were told that mRNA vaccines are in the nineties against hospitalization. Of course with delta who actually knows.
madville
(7,857 posts)It performed similarly to the mRNA vaccines in that regard with the previous COVID variants. I'll see if I can find some recent data about the mRNA performance against Delta specifically, but it too will likely be lower with Delta than it was against the original variants.
A big question now is also time. How much does the vaccine effectiveness wane after 90 days or 6 month? If J&J was 93% effective preventing hospitalization against the Alpha strain, but 71& effective against Delta, could some of that lower number be attributed to the vaccine losing effectiveness after people have had it for 6 months? Will a booster bring that number back up?
LisaL
(47,467 posts)I don't think it loses effectiveness with time, rather doesn't start off as high as mRNA vaccines in the particular study we are discussing. In which case a booster will increase antibody levels to the levels of mRNA vaccines and make it more effective.
Celerity
(54,695 posts)I only spoke of the comparative effectiveness rates in terms of death and hospitalisations. The J & J vax is far lower on both of those metrics than the 2 mRNA vaxxes.
madville
(7,857 posts)Please point out where I said that you stated that. You said something about trying to sell those effectiveness rates to the "American Public", and I said the news does a poor job of explaining the numbers to the public because many interpret the numbers to be far more dire than they really are.
What is the effectiveness of the two mRNA vaccines specifically against Delta? That's what I would like to see to compare these new Delta/J&J numbers to.
Celerity
(54,695 posts)and then adapting that numerical comparison to the South African study's J & J vaccine's 91-96% effectiveness rate against death from Delta, and the 71% effectiveness rate against hospitalisation from Delta
you correctly said 95% effectiveness rate at preventing death is misinterpreted by some to mean 5 out of 100 (5%) will die
I was simply saying I was NOT making that mistake (and doing so by using the actual numbers of the study, which would yield a 4% to 9% death rate and 29% hospitalisation rate IF I was making that mistake that the example you put up illustrated, ie. 95% effectiveness against death falsely yielding the conclusion that 5% will die)
madville
(7,857 posts)That's awesome.
Celerity
(54,695 posts)the Delta and (hopefully) Lambda variants.
At the bottom of my original reply there is one such (granted non peer-reviewed) study, which does have some data on both Delta and Lambda.
LisaL
(47,467 posts)at least during the time period studied.
Unfortunately it doesn't start off really high.
That said, I would like to get good numbers on how effective Pfizer and Moderna actually are against delta.
A lot of numbers being thrown at the public don't actually include delta.
Celerity
(54,695 posts)of my post.
DenaliDemocrat
(1,794 posts)To a huge, N, in real world, biased -high study.
Just for the record, the meta data for Jansen begins calculating efficacy at day 14. Immunity increases to day 56 and beyond, at which point it rivals the mRNA.
Jansen does produce lower tigers of neutralizing antibodies BUT has a more robust T-cell response.
90% plus protection in hospital workers who are among the most exposed to heavy viral loads is outstanding. This is a biased high situation and it performed exceptionally well.
Celerity
(54,695 posts)the 3 main US-used vaccines) against the variants, including Delta and Lambda.
DenaliDemocrat
(1,794 posts)Which really only looked at neutralizing antibodies and wrote a rather tilted response
Celerity
(54,695 posts)the various variants.
I simply posted the other articles and then some charts from the study referenced as a data point. I also added that is was not peer-reviewed. Many people (including some in this thread) are asking for data on the Pfizer and the Moderna against Delta. That particular study also included data against Lambda.
The comparative efficacy and/or effectiveness rates in terms of all major metrics for the J % J jab are much lower than what is being seen (and has been seen for ages) for the two mRNA vaxxes, especially against some of the variants. That is for all types of studies, whether clinical or in the real world.
DenaliDemocrat
(1,794 posts)There are no really high quality studies that compare the efficacy of J&J vs mRNA vs delta.
It just doesnt exist. Are you even a scientist?
LisaL
(47,467 posts)I don't think there is any data supporting that J&J is more efficient than mRNA vaccines. It had lower efficacy in clinical trials, and likely in the real world as well.
"Johnson & Johnson has the most at more than 102 breakthrough cases per 100,000.
Pfizer and Moderna are nearly neck and neck. Moderna, though, recorded the least amount of breakthrough cases at almost 57 cases per 100,000."
https://www.newson6.com/story/60f05713f4010b0bf64da8ca/number-of-breakthrough-cases-for-fully-vaccinated-people-remains-low-despite-rise-in-covid19-cases
DenaliDemocrat
(1,794 posts)When someone runs an ANOVA and gives me a p-value from peer reviewed journals Ill start to form an opinion. This is no better than the ivermectin and Chloroquine studies that came out.
LisaL
(47,467 posts)Lower efficacy-more breakthrough infections.
Not sure why you insist on arguing otherwise. Looking for this information, it appears to be consistent among the states that are reporting these numbers.
Here is the data from CA. Again, you have more breakthroughs with J&J compared to Pfizer and Moderna (which appears to be doing the best of the three across different states).
"As of this week, only 0.27% of people fully vaccinated with the Johnson & Johnson vaccine had later become infected compared with 0.15% of Pfizer-BioNTech recipients and 0.09% of those who got Moderna."
https://www.latimes.com/california/story/2021-07-30/breakthrough-cases-rising-in-l-a-but-vaccinated-still-hold-strong-protections
Celerity
(54,695 posts)DenaliDemocrat
(1,794 posts)Pre-print articles with weak power, poor controls, and no statistics and used it to bolster your argument.
Its anecdotal at worst, or very weak preliminary data at best.
Again, are you even a scientist?
Celerity
(54,695 posts)studies posted here. I was transparent from the beginning and stated it was non peer-reviewed. If you have an issue with it being published, then take it up with the New York Times and Forbes, which is where I got it from. Apparently they are being 'irresponsible', given your diktats, and your positing yourself as the unilateral arbiter of Covid discussion.
DenaliDemocrat
(1,794 posts)Pre-prints are meh. The Jansen vaccine is proving to be highly effective n real world scenarios. Pfizers number coming out of Israel Isnt particularly good if we are going off of observation
LisaL
(47,467 posts)Moderna. In which case providing a booster is clearly going to be beneficial. I really don't see what is the issue with providing a booster for J&J if people want it? Seems like providing a booster is going to give the best protection for people. I had Moderna and I still want a booster. Boosters have been shown to increase antibody levels, which is what we need for delta.
We see fewer than expected vaccine breakthrough cases in children, 12 to 17, but more in older age groups, she said. We are seeing more vaccine breakthrough cases with the Janssen, or Johnson and Johnson vaccine, and the Pfizer vaccine compared to Moderna.
https://www.cpr.org/2021/08/02/breakthrough-covid-cases-vaccinated-colorado/
DenaliDemocrat
(1,794 posts)It is unavoidable in my opinion. I am trusting the vaccines have primed my immune system to t-cell and b-cell response will be robust and I will clear the virus in days.
Expecting to have extreme titers of neutralizing antibodies year round in perpetuity is not realistic.
LisaL
(47,467 posts)We were told from the start that vaccines will likely need to be re-administered regularly.
I really don't see what the issue is with authorizing boosters. Especially considering third of adults in this country refuse to get vaccinated. So what's wrong with using their doses for boosters?
DenaliDemocrat
(1,794 posts)NOT catch it.