Big gap between Pfizer, Moderna vaccines for preventing Covid hospitalizations
post-gazette.com
post-gazette.com
- The eligible participants in the study tended to be over the age of 65 (Moderna median = 66, Pfizer median = 68)
- The Pfizer cohort (738 eligible participants) was almost twice the size of the Moderna cohort (476 eligible participants)
Would these factors have skewed the results at all? To me it seems like the study strongly indicates a difference for those age 65 and over but not necessarily for younger groups.
There is also still evidence of strong protection from hospitalization and death with both vaccines so I don’t think anyone necessarily needs to be regretting the fact that they got a pair of Pfizer shots at this point.
Source study: https://www.cdc.gov/mmwr/volumes/70/wr/mm7038e1.htm#T1_down
The evidence for Moderna providing a larger immune response due to the 3x dosage and longer intervals between doses isn't really in dispute at this point.
Aren't these just hypotheses? They're very plausible, but I wouldn't go as far as saying the mechanism isn't in dispute. It's the outcome that isn't in dispute.
https://www.businessinsider.com/pfizer-lower-dose-moderna-co...
Would be good to have adjusted studies.
If the sorting system were a little better at avoiding good comments being downvoted, when they are pointing out something not immediately obvious and agreeable, that would elevate the efficiency of discourse.
That seems more valuable than the time that has been spent on it would seem to indicate.
That is a mistake. I want to look at factual posts that are new to me, but also non-obvious posts. We burry non obvious posts more easily than we should, today, I think.
The current system on HN is not too bad, but it could do a slightly more subtler job of promoting ideas that take a little bit more effort before they seem obviously true, in retrospect.
We're too quick to hide the subtle and the uncertain.
Delaying the visual indicator of gray text for 1 hour would solve this problem. As it stands, it rewards pathological downvoters who continue to degrade healthy discussion on this site.
I would pay to see what happens if the rating system used dynamic weighs favouring reputation.
https://www.bmj.com/content/374/bmj.n1875
"It found that, after the second vaccine dose, neutralising antibody concentrations were higher after an interval of 6-14 weeks than after the 3-4 week regimen that was initially recommended.
When looking at the delta variant, researchers also noted that, though there were good levels of antibodies after the shorter dosing interval, levels were 2.3-fold higher with the longer dosing interval."
http://www.bccdc.ca/Health-Info-Site/Documents/COVID-19_vacc...
This isn't really "new" knowledge, double vaccine shots for other illnesses are usually spaced months apart because it usually boosts immune response and vaccine longevity. I feel quite fortunate that I got Moderna, spaced 7 weeks apart, here in Norway.
Other chatter I've seen is that which part of the immune system does the heavy lifting varies depending on the infectious agent. With Covid it's the CD4 T lymphocytes that appear to what's important. Antibodies by themselves aren't that effective. (Notable antibody based therapy has been a bust with Covid19)
But as you say presumably one can go someplace that has no record of them and get a “first” shot of something else.
Ya know, I keep hearing this, but no one ever seems to quote any actual statistics of the practice happening. Even the big Rolling Stone article that half the media quoted and went viral regarding the Oklahoma ERs having a rash of veterinary ivermectin ODs was complete BS. Some other article I read quoted about a “rash” of calls about horse ivermectin to poison control, which buried a few paragraphs in the article turned out to be like 4-5 calls total and pretty much all were just general calls inquiring if it was dangerous.
So while I am sure there are some people taking it, I imagine it’s about as prevalent a practice as the “some people took fish tank cleaner” last year…which turns out apparently the only actual case was just some crazy lady trying to kill her husband.
But hey I’m open to real evidence of the practice if someone can find some actual data and post it. Until then I chalk this up as rumor and assumption.
Also, since you believe the vaccines are valuable (otherwise you wouldn’t want a third), how do you deal with the thought that most of the world hasn't had an opportunity to get a first shot?
There no irony here. It's just bad business for the ruling class if the proletariat that works for them and is the pillar of their wealth, dies off.
If there's no one left to grow and harvest your food, maintain water and energy infrastructure, then it doesn't matter how much cash, stocks, how many jets, yachts and McMansions you own.
I guess that's why insulin rationing is a thing?
I know plenty of rich people that got their shots really early. They didn’t do that using money; they used their creativity. They printed up a fake letterhead for a non-existent medical company and just went for it.
That attitude of ‘just go for it’ has a propensity to make people rich as well.
I would much rather that every dose going un-used somehow find it's way into the arm of someone in the world that would take it and get us that much closer to stopping variants and achieving herd immunity, but that's not the world we live in. Instead doses are being thrown away, and enough people with access to the vaccine are instead insisting on dragging this pandemic out. So I'll take every defense available to me, and all the benefits it incurs to those around me, and not apologize for it (yes, I still wear a mask indoors even after 4 rounds.)
Edit: corrected March to February.
Why would you take a second Moderna?
The second dose is for people who had one. If third shots are being offered you don't take a second dose a few weeks later.
Going? Gone.
Why would you take a second Moderna?
I initially thought about treating the Moderna round 1 as a booster to my 2 rounds of Pfizer. But the first time I posted from this account (I never should have used my real name for my primary account, too many crazies) it was to comment on a story about studies that Pfizer is less effective than Moderna vs Delta, that was 38 days ago. Now this discussion is coming from a story about hospitalizations rates for Pfizer vs Moderna. As the science regarding this pandemic changes my risk tolerance for myself and those for whom I'm responsible will change too. Right now "over vaccinated" isn't even a concept, if that changes I'll accept the consequences of my actions.
Just saw a headline about this — it is.
Wasn't expecting that... or was that because of the carefully asked and answered question about previously having had moderna, and not mentioning the previous pfizer?
was that because of the carefully asked and answered question about previously having had moderna, and not mentioning the previous pfizer?
Nope. I'm not going to bullshit anyone here, if I had been asked if I was already vaccinated I would have lied (BUT NOT IF THE DOSES COULD HAVE BEEN REDIRECTED, I never would have requested the Moderna round if doses weren't sitting unused.)
Only thing to worry about/watch for is immune response and toxicity.
Not weird science class volcano coming from his mouth.
It did make me wonder why Merkel went with Moderna instead of BioNTech. I would assume she could have easily chosen either. Perhaps because Moderna was thought to be more potent by the June timeframe.
Are there? It might have come from another species, but humans might not interact with it all that often. Other animals can clearly get it, but do we know the R0 for covid in, say, cats?
https://www.cbc.ca/news/canada/british-columbia/200-mink-die...
But probably much more.
https://www.nature.com/articles/d41586-021-00531-z
> Studies have shown that SARS-CoV-2 can infect many domesticated and captive creatures, from cats and dogs, to pumas, gorillas and snow leopards in zoos, and farmed mink. Outbreaks in mink farms have already shown that infected animals can pass the virus back to humans.
(Edit: in the US. It seems like only mRNA is available)
All three are easier to store and transport than the mRNA vaccines, as well as being one-shot vaccines. There's a political problem - they're seen as inferior vaccines for poor people, at least in the US.
[1] https://en.wikipedia.org/wiki/CoronaVac
[2] https://en.wikipedia.org/wiki/Sputnik_V_COVID-19_vaccine
Also Sputnik V is a two dose vaccine, like Astra Zeneca’s
One shot is a miracle for vulnerable populations — my dad was a very vulnerable person with limited mobility; the county sheriffs went out and vaccinated him and others. The two shot regimens are also difficult for workers in swing /night shift and other scenarios.
Supply problems makes it sound like they didn't have enough ingredients to make it. IIRC the labs making it were contaminated. That's less of a supply problem than a competency problem.
When the French gov't announced that you need a vaccination pass to be admitted into restaurants, more than 600k people registered for vaccination in the folliwing days, most of them for the one shot J&J vaccine. So I guess it's also good for undecided people?
Most countries who have an alternative don't use Sinovac.
Japan reported contamination of Moderna, and recalled a million doses:
https://apnews.com/article/business-health-coronavirus-pande...
I thought the vaccines in the US were free, why would the inferior ones be for poor people?
Infographics are available at the British Society for Immunology website, Types of vaccines for COVID-19 page (April 2021):
https://www.immunology.org/coronavirus/connect-coronavirus-p...
Which lists:
-- Viral vector vaccines (OAZ; Jannsen; CanSino; Gamaleya)
-- Genetic vaccines (Pfizer; Moderna; CureVac; Inovio)
-- Inactivated vaccines (Sinovac; Sinopharm; Bharat; Shifa; CAMS)
-- Attenuated vaccines (Codagenix)
-- Protein vaccines (Novavax; Sanofi)
-- University of Oxford/ AstraZeneca "ChAdOx1-S; AZD1222" - Deficient chimpanzeeadenovirus
-- Sinovac "CoronaVac" - Inactivated whole virus
-- Inactivated Wuhan Institute of Biological Products/ Sinopharm - Inactivated whole virus
-- Beijing Institute of Biological Products/ Sinopharm "BBIBP-CorV" - Inactivated whole virus
-- CanSino Biological Inc./ Beijing Institute of Biotechnology "Ad5-nCoV" - Deficient adenovirus-5
-- Bharat Biotech "Covaxin" - Inactivated whole virus
-- Gamaleya Research Institute Sputnik V "Gam-COVID-Vac" - Deficient adenovirus-5
-- Janssen Pharmaceutical Companies "Ad26.COV2.S" - Deficient adenovirus-26
-- Novavax "NVX-CoV2373" - Recombinant protein
-- BioNTech/ Fosun Pharma/ Pfizer "BNT162 - Comirnaty" - RNA-based vaccine
-- Moderna/ NIAIDc "mRNA-1273" - RNA-based vaccine
I think in testing in the west it was less effective at the time than others.
N=1 that natural immunity lasts long has to do with my 70+ year old dad who got covid Summer 2020 and has been doing blood donations ever since as he has type O blood. Every time he goes in they report back that his antibody count is still high. I can't offer you any studies on that, just a personal antidote.
Edit guess I'll get more minus points for my N=1 antidotes
There are some notable exceptions though, e.g. HPV, Tetanus, and some others.
It'll be interesting to see whether even more effective vaccines come out in a few years.
> “That’s the beauty of the emergency use authorization,” said Monto, an epidemiologist at University of Michigan. “It can be changed based on changing data.”
It is pushing 2 years. Although this is technical language, really there should be a move away from the word 'emergency' to talk about what is going on. This is now what business as usual looks like for the next 5 years.
Israel is the leader here, and has better control of reactionary elements of the population. Their data is pretty solid. Personally, I’d focus on the Israeli reports and ignore hot takes from the US government - between the chaos of the previous POTUS and the stresses of the pandemic, I think the US agencies are hurting.
A big part of that is the Orthodox population who is choosing not to get vaccinated.
Not sure why you think Israel isn’t dealing with the same issues countries like the US are.
Israel is much, much younger than the rest of the world, statistically speaking.
https://www.nytimes.com/interactive/2020/us/covid-19-vaccine... scroll down slightly to see that Pfizer is administered more, but not vastly more than Moderna.
https://covid.cdc.gov/covid-data-tracker/#vaccinations_vacc-...
https://www.fda.gov/news-events/press-announcements/fda-appr...