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Study Largely Confirms Known, Rare COVID-19 Vaccine Side Effects

FactCheck.org

February 27, 2024

SciCheck Digest

An international study of around 99 million people confirmed known serious side effects of COVID-19 vaccination. It also identified a possible relationship between the first dose of the Moderna vaccine and a small risk of a neurological condition. Social media posts about the study left out information on the vaccines’ benefits and the rarity of the side effects.

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COVID-19 vaccines — like all vaccines and other medical products — come with side effects, including serious side effects in rare cases. The vaccines were rolled out to protect people from a novel virus that has killed millions of people globally and would likely have killed millions more without the arrival of the vaccines. There is a broad consensus from experts and governmental health agencies that the benefits of COVID-19 vaccination outweigh the risks.

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“What we take away, is that the Covid-19 vaccination campaigns have been very effective in preventing severe disease,” study co-author Anders Hviid, head of the department of epidemiology research at the Statens Serum Institut in Denmark, told us in an email. “The few serious side effects that we have observed in this and other studies have been rare.”

 

(more)

 

https://www.factcheck.org/2024/02/study-largely-confirms-known-rare-covid-19-vaccine-side-effects/

 

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20 minutes ago, Red Phoenix said:

For some reason I have more confidence in the results and conclusion from the study, than how the FactCheckers did (try to) 'debunk' it as addressed in TGJ in BKK's posts.   But that's just me folks, a deluded anti-vax conspiracy loon...

I trust the study authors more than a anti-vax conspiracy loon.

 

Epidemiologist Anders Peter Hviid, one of the study authors, told AFP the findings confirm previous research and should not deter people from receiving Covid-19 shots.

 

 "What we take away is that the Covid-19 vaccination campaigns have been very effective in preventing severe disease," he said on February 23. "The few serious side effects that we have observed in this and other studies have been rare."

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Posted (edited)
37 minutes ago, Red Phoenix said:

For some reason I have more confidence in the results and conclusion from the study, than how the FactCheckers did (try to) 'debunk' it as addressed in TGJ in BKK's posts.   But that's just me folks, a deluded anti-vax conspiracy loon...

 

The fact checkers above are NOT "debunking" the study, which anyone who bothered to read the above reports would clearly understand. The cited study was/is a legitimate, scientifically produced credible research effort, and has been widely accepted and appreciated in the scientific/public health community.

 

What is being "debunked" are the fraudulent attempts by anti-vaxers to misportray and misrepresent the study's actual findings (which are written in a lot of scientific jargonese) and the very rare levels of risk found.

 

Edited by TallGuyJohninBKK
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24 minutes ago, stevenl said:

I trust the study authors more than a anti-vax conspiracy loon.

> Researchers found HIGHER than expected cases that they deemed met the threshold to be potential safety signals for multiple AESIs, including for Guillain-Barre syndrome (GBS), cerebral venous sinus thrombosis (CVST), myocarditis, and pericarditis.

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It's worth noting that several of the identified increased rare risks called out in the study (GBS and CVST) were associated only with the now withdrawn AstraZeneca vaccine, and not with the mRNA vaccines.

 

And most of those associated with the mRNA were the previously known rare risks of myocarditis and pericarditis (heart-related), where most studies have found those vaccine-related side effects to be generally mild and temporary in duration, unlike when those occur from COVID infections.

 

Addressing the specifically identified rare side effects, Science Based Medicine reported:

 

"Meanwhile, the chances of having a neurological event after a Covid infection were up to 617-fold higher than following COVID vaccination, which suggests “the benefits of vaccination substantially outweigh the risks,” according to the Vaccine study researchers.

 

The risk of developing myocarditis is higher post-Covid infection than after getting a Covid vaccine, according to Akiko Iwasaki, PhD, professor of Immunobiology at Yale University. Myocarditis risk after the second dose of a Covid vaccine is 35.9 per 100,000 people, compared to a 64.9 per 100,000 risk after Covid infection.

 

The risk of developing Guillain-Barre syndrome after Covid infection was six times greater, and the risk of developing it after vaccination was 0.41 times greater than the control group, according to a 2023 study published in Neurology."

 

https://sciencebasedmedicine.org/how-antivaxxers-weaponize-vaccine-safety-studies-to-falsely-portray-vaccines-as-dangerous/

 

 

 

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42 minutes ago, Red Phoenix said:

> Researchers found HIGHER than expected cases that they deemed met the threshold to be potential safety signals for multiple AESIs, including for Guillain-Barre syndrome (GBS), cerebral venous sinus thrombosis (CVST), myocarditis, and pericarditis.

Why are you ignoring the explanation by one of the authors? Don't like his explanation or maybe you know better?

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8 minutes ago, stevenl said:

Why are you ignoring the explanation by one of the authors? Don't like his explanation or maybe you know better?

The study mentions" "we observed significantly higher risks of myocarditis following the first, second and third doses of BNT162b2 and mRNA-1273 as well as pericarditis after the first and fourth dose of mRNA-1273, and third dose of ChAdOx1, in the 0–42 days risk period."

And the cherry on the cake > Quote from the Funding Statement of that study: "The GCoVS project is supported by the Centers for Disease Control and Prevention (CDC) of the U.S. Department of Health and Human Services (HHS) as part of a financial assistance award totalling US$10,108,491 with 100 % per cent funded by CDC/HHS."

Whose bread i eat...

Source: https://www.sciencedirect.com/science/article/pii/S0264410X24001270?via%3Dihub

 

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Posted (edited)

The cited study assessed the individual side effect risks from three different COVID vaccines: AstraZeneca, Pfizer and Moderna:

 

GBS and CVST, only cited for the AZ vaccine and both previously identified as rare risks.

 

Myocarditis and pericarditis, both previously identified rare risks from the mRNA vaccines, along with the AZ vaccine.

 

That's why the above FactCheck.org report on all this was titled:

 

Study Largely Confirms Known, Rare COVID-19 Vaccine Side Effects

 

Edited by TallGuyJohninBKK
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Per the US CDC:

 

Myocarditis and Pericarditis after COVID-19 Vaccination

Myocarditis and pericarditis after COVID-19 vaccination are rare. Myocarditis is inflammation of the heart muscle, and pericarditis is inflammation of the outer lining of the heart. Most patients with myocarditis or pericarditis after COVID-19 vaccination responded well to medicine and rest and felt better quickly, and most cases have been reported after receiving mRNA COVID-19 vaccines.

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Data from VSD and from VAERS indicate that rates of myocarditis after COVID-19 vaccination are highest among males in their late teens and early 20s, usually following the second dose of the vaccine.

 

https://www.cdc.gov/coronavirus/2019-ncov/vaccines/safety/adverse-events.html

 

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So let's talk about COVID vaccines and young people:

Teen vaccination cut COVID-19 cases by 37% in California, new data show

April 25, 2024

 

JAMA Network Open has published a new study showing that, from April 1, 2020, to February 27, 2023, in California, an estimated 146,210 COVID-19 cases were averted by vaccination in teens aged 12 to 15 years, representing a 37% reduction.

 

Researchers also estimated that 230,134 cases were averted in kids aged 5 to 11 years, a 24% reduction. 

 

https://www.cidrap.umn.edu/covid-19/teen-vaccination-cut-covid-19-cases-37-california-new-data-show

 

April 23, 2024

COVID-19 Vaccination and Incidence of Pediatric SARS-CoV-2 Infection and Hospitalization

"We provide evidence that California’s pediatric COVID-19 immunization program averted 376 085 (95% PI, 348 355-417 328) reported cases and 273 (95% PI, 77-605) hospitalizations among children aged 6 months to 15 years during the 4 to 7 months following vaccine availability. This represents a reduction of 26.3% of the number of cases that would have been seen in this population absent the vaccine."

 

https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2817868

 

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