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Medicine

Covid Vaccines Fight Serious Illness, But Only Pfizer and Moderna With a Booster Stop Omicron Infections (deccanherald.com) 328

"A growing body of preliminary research suggests the COVID vaccines used in most of the world offer almost no defense against becoming infected by the highly contagious omicron variant," reports the New York Times. (Emphasis added, because they stress that "All vaccines still seem to provide a significant degree of protection against serious illness from omicron, which is the most crucial goal.")

"But only the Pfizer and Moderna shots, when reinforced by a booster, appear to have initial success at stopping infections, and these vaccines are unavailable in most of the world." The other shots — including those from AstraZeneca, Johnson & Johnson and vaccines manufactured in China and Russia — do little to nothing to stop the spread of omicron, early research shows. And because most countries have built their inoculation programs around these vaccines, the gap could have a profound impact on the course of the pandemic. A global surge of infections in a world where billions of people remain unvaccinated not only threatens the health of vulnerable individuals but also increases the opportunity for the emergence of yet more variants.

The disparity in the ability of countries to weather the pandemic will almost certainly deepen.... Most evidence so far is based on laboratory experiments, which do not capture the full range of the body's immune response, and not from tracking the effect on real-world populations. The results are striking, however. The Pfizer and Moderna shots use the new mRNA technology, which has consistently offered the best protection against infection with every variant. All of the other vaccines are based on older methods of triggering an immune response. The Chinese vaccines Sinopharm and Sinovac — which make up almost half of all shots delivered globally — offer almost zero protection from omicron infection. The great majority of people in China have received these shots, which are also widely used in low- and middle-income countries such as Mexico and Brazil.

A preliminary effectiveness study in Britain found that the Oxford-AstraZeneca vaccine showed no ability to stop Omicron infection six months after vaccination. Ninety percent of vaccinated people in India received this shot, under the brand name Covishield; it has also been widely used across much of sub-Saharan Africa, where Covax, the global Covid vaccine program, has distributed 67 million doses of it to 44 countries. Researchers predict that Russia's Sputnik vaccine, which is also being used in Africa and Latin America, will show similarly dismal rates of protection against Omicron. Demand for the Johnson & Johnson vaccine had been surging in Africa, because its single-shot delivery regimen makes it easy to deliver in low-resource settings. But it too has shown a negligible ability to block Omicron infection.

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Covid Vaccines Fight Serious Illness, But Only Pfizer and Moderna With a Booster Stop Omicron Infections

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  • by ffkom ( 3519199 ) on Sunday December 19, 2021 @01:53PM (#62097241)
    The Danes do a lot of sequencing on their positively tested cases, and you can read the results from that in https://www.ssi.dk/-/media/cdn... [www.ssi.dk]
    Look at "Table 4" on page 7, where the absolute and relative numbers of people who tested positive is given per variant (Omikron vs. "other") and per vaccination status: 10.3% of Omikron-positive people were "boostered", 8.5% were "unvaccinated".
    Combine this with the number of people who received "booster shots" in Denmark (27.2% on 2021-12-16) or have not been fully vaccinated (22.5%) [ourworldindata.org] and it appears as if, at least in Denmark, "boostered" people have no less positive tests than the not fully vaccinated - so probably also no less infections. (Severity of symptoms is a different story, but TFA claims protection against _infection_ from "booster" shots.)
    • by bluegutang ( 2814641 ) on Sunday December 19, 2021 @03:26PM (#62097521)

      I'm confused - doesn't your data show that "boostered people" form 27.2% of Danes but only 10.3% of Omicron infections? Which suggests a relatively high level of protection for the booster?

      (By the same token, at first glance the data suggests that unvaccinated people are "protected" too. But this conclusion seems to result from a statistical error - 8.5% of Omicron infections in PEOPLE OVER AGE 12 are in unvaccinated people, while 22.5% of THE ENTIRE POPULATION is not fully vaccinated. Of that 22.5%, a large fraction are under age 12, and not included in the Omicron data.)

      • by ffkom ( 3519199 )
        It is indeed the relation between the "booster vaccinated" and the "not vaccinated" groups in Table 4 that is striking, were both groups seem to be similarly less represented among those tested positive for Omicron. It would not seem plausible to speak of protection, if it was not measurable comparing to the not vaccinated.
        Regarding the fact that the Table 4 caption says: "Individuals aged 5-11 years have recently been invited for COVID-19 vaccination, hence the vaccination coverage is relatively low in th
  • by quonset ( 4839537 ) on Sunday December 19, 2021 @01:55PM (#62097257)

    After saying Washington (the state) was out of step with the rest of the nation when it came to the science behind wearing masks and getting vaccinated, (now former) state Senator Doug Ericksen has died from covid [cnn.com].

    He did his own research and visited El Salvador where he contracted covid, then begged for expensive treatment chemicals with who knows what in them to be immediately shipped in, at the taxpayer's expense, to help him because getting a vaccine was too difficult.

    As per usual, we're supposed to offer thoughts and prayers for the dumb ass while respecting his family's privacy rather than laughing our asses off [memesmonkey.com].

    • by 93 Escort Wagon ( 326346 ) on Sunday December 19, 2021 @03:00PM (#62097435)

      After saying Washington (the state) was out of step with the rest of the nation when it came to the science behind wearing masks and getting vaccinated, (now former) state Senator Doug Ericksen has died from covid [cnn.com].

      Basically, he didn't like how Governor Inslee was enforcing mask mandates and pushing vaccination - so I guess the "rest of the nation" that we're "out of step with" means states like Texas, Florida, and South Dakota.

      While I would have been pleased to read that Doug Ericksen had lost reelection, I'm not going to celebrate his death. I would have been happier if he'd recovered to learn (and say) "I was wrong".

      • That's not how risk management decisions are judged. If you die without ever having had a house fire, it isn't that you were wrong to have paid for fire insurance all those years. And if you are rich enough that a house fire won't wipe you out and you decide that fire insurance is mathematically a poor value for you, it doesn't mean that you were wrong if you get unlucky and have a fire.

        In the same way, people who evaluate the risks, costs and benefits of vaccination and make a decision are not wrong if t

      • by ArchieBunker ( 132337 ) on Sunday December 19, 2021 @05:26PM (#62097893)

        He can put this on his tombstone. Died pwning the libs

    • by ewibble ( 1655195 ) on Sunday December 19, 2021 @03:06PM (#62097449)

      Anecdotes are not a good way scientifically prove anything. I am sure people who are anti vaccinations can find people who took the vaccine and died anyway. It proves nothing, your story doesn't prove that Dough Ericksen wouldn't have died anyway if he had the vaccine. Everybody can supply these stories long after people are tire of listening to them.

      Note:
      I am NOT saying that I believe people shouldn't get vaccinated, just that your argument is emotive rather than rational.

    • by hey! ( 33014 )

      No man is an island, and even if he dies because of his own foolish choices the consequences of his death aren't confined to him; they affect his family and everyone who depends on him. So it gives me no pleasure when someone is killed through his own foolish choices.

      Mocking the foolish and willfully ignorant only reinforces the perception that this is about choosing sides in some kind of political game, rather than facing a sometimes harsh reality that doesn't care one way or the other about our bullshit.

  • I get the regular flu shot every year. I don't mind adding it to my list, bringing the total to... 2. I also got a shingles shot, vaccination shots for travel to Mexico, and whatever else was offered to me. The risk/reward is so far skewed in favour of getting the shot that it mystifies me that anybody would say it's too risky. Unless, of course, it's political identity, partisanship, and vapid point repetition masquerading as critical thought.

    I'm not qualified to judge the results of "a" study. But I'm cap

    • My first two were Pfizer, but I decided to take advantage of the "mix and match" approach allowed by the CDC - so the booster I got this past week was Moderna.

      I will note that, the night after the shot, I woke up with significant chills which lasted an hour or two (I didn't bother to check my temperature, knowing this was almost certainly a response to the shot). And the next day I felt pretty run down... but that was it for symptoms. Pretty similar to how I felt after each of the original Pfizer shots - al

  • Breakthrough Infections of SARS-CoV-2 Gamma Variant in Fully Vaccinated Gold Miners, French Guiana, 2021 [nih.gov]

    An outbreak of severe acute respiratory syndrome coronavirus 2 caused by the Gamma variant of concern infected 24/44 (55%) employees of a gold mine in French Guiana (87% symptomatic, no severe forms). The attack rate was 60% (15/25) among fully vaccinated miners and 75% (3/4) among unvaccinated miners without a history of infection.

    Severe breakthrough COVID-19 cases in the SARS-CoV-2 delta (B.1.617.2) va [thelancet.com]

  • by hatchet ( 528688 ) on Sunday December 19, 2021 @03:31PM (#62097531) Homepage
    Lets archive this.... and see the moving of goalpost begin.
  • So in Canada, a lot of us are fully vaccinated with two different vaccines. We did it to get around supply constraints, and it seemed safe and fairly effective. Later studies seemed to show that in some cases, a mixed course was BETTER than two of the same type. Now I'm wondering what's happening with those people (like my partner) who were vaccinated first with AZ but then later with Moderna. I was vaccinated with Pfizer and then Moderna.

    I'd like my booster soon and I don't really care what it is, but it w

    • by ffkom ( 3519199 )
      The best booster would probably a modified-for-Omicron one, like mRNA-1273.259 - but it has been eerily quiet during the last weeks on what the status is regarding such updated vaccines. In-vitro neutralization lab tests are quick and easy, and that was all we heard results of, but has any manufacturer yet started a clinical study and/or started to mass-produce an updated vaccine?

      I wonder why questions on such studies, manufacturing or an approval process are not asked by journalists currently as often a
  • I have always wondered if giving everyone the same dose was the way to go. The person that weighs 40kg is getting much more than the person that weighs 80kg.

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