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COVID-19 vaccination is generally very safe, and except for extremely rare cases, there is no evidence that it contributes to death. Social media posts about a now-published, but faulty review of autopsy reports, however, are repeating an unfounded claim from last summer that 74% of sudden deaths are shown to be due to the COVID-19 vaccine.

How safe are the COVID-19 vaccines?

More thanhalf a billion doses of COVID-19 vaccines have now been administered in the U.S. and only a few, very rare, safety concerns have emerged. The vast majority of people experience only minor, temporary side effects such as pain at the injection site, fatigue, headache, or muscle pain or no side effects at all. As the Centers for Disease Control and Prevention has said, these vaccines have undergone and will continue to undergo the most intensive safety monitoring in U.S. history.

A small number of severe allergic reactions known as anaphylaxis, which are expected with any vaccine, have occurred with the authorized and approved COVID-19 vaccines. Fortunately, these reactions are rare, typically occur within minutes of inoculation and can be treated. Approximately 5 per million people vaccinated have experienced anaphylaxis after a COVID-19 vaccine, accordingto the CDC.

To make sure serious allergic reactions can be identified and treated, all people receiving a vaccine should be observed for 15 minutes after getting a shot, and anyone who has experienced anaphylaxis or had any kind of immediate allergic reaction to any vaccine or injection in the past should be monitored for a half hour. People who have had a serious allergic reaction to a previous dose or one of the vaccine ingredients should not be immunized. Also, those who shouldnt receive one type of COVID-19 vaccine should be monitored for 30 minutes after receiving a different type of vaccine.

There is evidence that the Pfizer/BioNTech and Moderna mRNA vaccines may rarely cause inflammation of the heart muscle (myocarditis) or of the surrounding lining (pericarditis), particularly in male adolescents and young adults.

Based on data collected through August 2021, the reporting rates of either condition in the U.S. are highest in males 16 to 17 years old after the second dose (105.9 cases per million doses of the Pfizer/BioNTech vaccine), followed by 12- to 15-year-old males (70.7 cases per million). The rate for 18- to 24-year-old males was 52.4 cases and 56.3 cases per million doses of Pfizer/BioNTech and Moderna vaccines, respectively.

Health officials have emphasized that vaccine-related myocarditis and pericarditis cases are rare and the benefits of vaccination still outweigh the risks. Early evidence suggests these myocarditis cases are less severe than typical ones. The CDC has also noted that most patients who were treated responded well to medicine and rest and felt better quickly.

The Johnson & Johnson vaccine has been linked to anincreased risk of rare blood clots combined with low levels of blood platelets, especially in women ages 30to 49. Early symptoms of the condition, which is known as thrombosis with thrombocytopenia syndrome, or TTS, can appear as late as three weeks after vaccination andincludesevere or persistent headaches or blurred vision, leg swelling, and easy bruising or tiny blood spots under the skin outside of the injection site.

According to the CDC, TTS has occurred in around 4 people per million doses administered. As of early April,the syndrome has been confirmed in 60 cases, including nine deaths, after more than 18.6 million doses of the J&J vaccine. Although TTS remains rare, because of the availability of mRNA vaccines, which are not associated with this serious side effect, the FDA on May 5 limited authorized use of the J&J vaccine to adults who either couldnt get one of the other authorized or approved COVID-19 vaccines because of medical or access reasons, or only wanted a J&J vaccine for protection against the disease. Several months earlier, on Dec. 16, 2021,the CDC had recommended the Pfizer/BioNTech and Moderna shots over J&Js.

The J&J vaccine has also been linked to an increased risk of Guillain-Barr Syndrome, a rare disorder in which the immune system attacks nerve cells.Most peoplewho develop GBS fully recover, although some have permanent nerve damage and the condition can be fatal.

Safety surveillance data suggest that compared with the mRNA vaccines, which have not been linked to GBS, the J&J vaccine is associated with 15.5 additional GBS cases per million doses of vaccine in the three weeks following vaccination. Most reported cases following J&J vaccination have occurred in men 50 years old and older.

Link to this

Last July, an unpublished paperauthoredby several physicians known for spreading COVID-19 misinformationbrieflyappearedon a preprint server hosted by the prestigious British medical journal the Lancet.

The paperclaimedto have reviewed autopsy reports and found in the opinion of three of its authors that 73.9% of the selected deaths were directly due to or significantly contributed to by COVID-19 vaccination. Those conclusions, however, wereoften contraryto the original scientists determinations. Moreover, abundant evidence contradicts the suggestion that the COVID-19 vaccines are frequently killing people.

The preprint repository quicklyremovedthe manuscript because, it said, the studys conclusions are not supported by the study methodology, and indicated that the preprint had violated its screening criteria.

Social media soon flooded with posts highlighting the purported findings and alleging censorship, with many falsely stating that the paper had been published in the Lancet.

Multiplescientistsandfactcheckersdetailednumerous problems with the preprint and the resulting social media posts. As Dr. Jonathan Laxton, an assistant professor of medicine at the University of Manitoba who frequently debunks misinformation online,wrote at the timeon Twitter, this is not a conspiracy, the paper was literally biased hot garbage and the Lancet was right to remove it.

Despite these efforts, the same claims are back this summer after the paper waspublishedin the journal Forensic Science International on June 21. Capitalizing on the papers now-published status,numerouspostsareonceagainspreading the reviews supposed findings and realleging censorship.

Largest autopsy series in the world. Censored by what was the most reputable peer reviewed journal, readsonepopular Instagram post. 74% of the 325 Suddenly Died Autopsies point the cause to the dart, it added, using coded language to refer to the COVID-19 vaccines.

Anotherpost, from Dr.Sherri Tenpenny, an osteopathic physician in Ohio known for her opposition to vaccines and her false claim that the COVID-19 vaccines magnetize people, also repeated the falsehood that the paper had been previously published in the Lancet.

Bottom line results: 74% of sudden deaths are shown to be due to the COVID-19 vaccine, the post went on to say. This paper is a game changer. Sadly, it was censored for ONE YEAR. Just think of all the lives that could have been saved.

As weve explainedbefore, publication in a peer reviewed journal does not necessarily mean a paper is accurate or trustworthy, although the process can improve manuscripts and weed out bad science. In this case, the published paper is highly similar to the previously criticized manuscript. Experts say its conclusions are unreliable and misleading.

The vast majority of these cases do not show a causal, but coincidental, effect, wrote Marc Veldhoen, an immunologist at the Instituto de Medicina Molecular Joo Lobo Antunes in Portugal, in a thread on X, addressing the papers central claim. This certainly does not apply to the general population!

When asked about the published paper, Dr. Cristina Cattaneo,co-editor-in-chiefof Forensic Science International, told us the journal was currently looking into the matter.

For their review, the authors searched the medical literature for published autopsy studies related to any kind of COVID-19 vaccination. After excluding duplicates and studies without deaths, autopsies, or vaccination status information, the authors were left with 44 studies comprising 325 autopsies. Three of the authors then reviewed the described cases and decided for themselves if the deaths were vaccine-related; if at least two agreed, the death was counted as being attributable to COVID-19 vaccination.

In the end, the authors thought 240, or nearly 74%, of the reviewed autopsies were vaccine-related (rounded to one decimal, 240 out of 325 is actually 73.8%, not 73.9% as reported in the paper). Among these deaths, 46.3% occurred after a Sinovac vaccine, 30.1% after a Pfizer/BioNTech vaccine, 14.6% after an AstraZeneca vaccine, 7.5% after a Moderna vaccine and 1.3% after a Johnson & Johnson vaccine.

As others havepointed outbefore, theres reason to suspect that the authors may have been biased in their determinations. All three adjudicators, including Dr.Peter McCullough, are well known for spreading COVID-19 misinformation. Dr. William Makis, a Canadian radiologist, haspreviously claimed, without evidence, that 80 Canadian doctors died from COVID-19 vaccines. The only pathologist, Dr. Roger Hodkinson, incorrectlyclaimedin 2020 that COVID-19 was a hoax and just a bad flu.

Hodkinson and McCullough, along with five other authors, are also affiliated with and have a financial interest in The Wellness Company, a supplement and telehealth company thatsells unproven treatments, including for purported protection against vaccines.

Perhaps most tellingly, the scientists who conducted many of the autopsy studies came to opposite conclusions than the review authors. Of the 240 cases, for example, 105 come from a singlepaperin Colombia, whose authors found [n]o relation between the cause of death and vaccination.

Similarly, the review authors counted 24 of 28 autopsies from astudyfrom Singapore as vaccine-related, even though the original authors identified no definite causative relationship to mRNA vaccines.

The authors of a Germanstudyalso attributed 13 of 18 autopsy deaths to preexisting diseases, but the review authors decided 16 cases were vaccine-related.

In aLinkedIn postdebunking the preprint, Dr.Mathijs Binkhorst, a Dutch pediatrician, went back to each cited paper, and found that of the 325 autopsies and one heart necropsy the review authors said were vaccine-related, only 31, or 9.5%, were likely related and 28, or 8.6%, were possibly related. The rest 267, or 81.9% were unlikely, uncertainly, or not related to vaccination.

In other words, even among a set of studies that is more likely to identify some vaccine involvement, less than a fifth of deaths were possibly or likely vaccine-related.

Even if the authors arent biased, this type of study is not able to provide information on how frequently COVID-19 vaccination leads to death, and whether the risks outweigh the benefits.

They only looked at published autopsy and necropsy reports relating to COVID-19 vaccination, Veldhoensaidof the published study on X. If you look only at autopsies of those related (in time) with drugX: X-involvement is then a high proportion of all cases.

Indeed, as Binkhorst noted, the autopsy reports come from 14 countries that collectively administered some 2.2 billion vaccine doses. If the COVID-19 vaccines truly were as dangerous as the review authors contend, this would be evident in other data sources but its not.

Vaccine safety surveillance systems and other studies from across the globe have found that serious side effects can occur, but they are rare.

The Johnson & Johnson and AstraZeneca vaccines, for example, can in very rare cases cause a dangerous and sometimes fatal blood clotting condition combined with low blood platelets.

Rarely, the mRNA COVID-19 vaccines from Moderna and Pfizer/BioNTech have caused inflammation of the heart muscle or surrounding tissue, known as myocarditis or pericarditis. In almost all cases, however, those conditions are not deadly.

There is no evidence that COVID-19 vaccination increases the risk of death and has led to excess deaths or a large number of deaths. Instead, a wealth of data supports the notion that COVID-19 vaccines protect against severe disease and death from COVID-19. The flawed autopsy review doesnt change this.

Roley, Gwen. Misinformation swirls around unpublished paper on Covid-19 vaccine risks. AFP. 14 Jul 2023.

Hulscher, Nicolas et al. A Systematic REVIEW of Autopsy findings in deaths after covid-19 vaccination. Forensic Science International. Available online 21 Jun 2024.

Binkhorst, Mathijs. McCulloughs misinformation. LinkedIn post. Archived 4 Sep 2023.

Laxton, Jonathan (@dr_jon_l). McCullough et al attempted upload a preprint to the Lancet server, and it was removed because it was hot garbage. However, I feel going through this paper for you guys will help you spot dodgy science X. 6 Jul 2023.

Payne, Ed. Fact Check: A Lancet Study Does NOT Show COVID Vaccine Caused 74% Of Deaths In Sample Lancet Rejected Paper And Its Methods. Lead Stories. 7 Jul 2023.

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Flawed Autopsy Review Revives Unsupported Claims of COVID-19 Vaccine Harm, Censorship - FactCheck.org