Category: covid-19

One of the first studies of long COVID has been retracted and replaced seven months after editors marked it with an expression of concern citing “data errors.” 

The original paper, “6-month consequences of COVID-19 in patients discharged from hospital: a cohort study,” was published in The Lancet in January 2021. It was “the first large cohort study with 6-months’ follow-up” of people hospitalized with COVID-19, according to an editorial published simultaneously, and has been cited more than 2,000 times, according to Clarivate’s Web of Science. The World Health Organization, for example, cited it in several documents. 

Last November, the article received an expression of concern stating that a researcher had contacted the journal about inconsistencies between that study and a paper published in August 2021, also in The Lancet, describing the same cohort of patients after one year of follow up. 

A journal has issued an expression of concern for an Australian study that supported mask mandates after researchers raised several potential problems with the design and methodology of the study.

The article, “The introduction of a mandatory mask policy was associated with significantly reduced COVID-19 cases in a major metropolitan city,” was published in the journal PLOS ONE in July 2021. It has been cited 12 times, according to Clarivate’s Web of Science. 

In comments to Retraction Watch, the authors of the paper stood by their work, but a key critic said he still thought the work should have been retracted.

The publisher Frontiers has published an expression of concern for an article that proposed “ivermectin protects against COVID-19” via effects on the microbiome.  

The article, “Microbiome-Based Hypothesis on Ivermectin’s Mechanism in COVID-19: Ivermectin Feeds Bifidobacteria to Boost Immunity,” was published in July 2022 in Frontiers in Microbiology. The sole author, Sabine Hazan, is affiliated with ProgenaBiome, a company based in Ventura, Calif.  that “spearheads the movement of validating, verifying, and clinically applying its sequencing data, to better understand the microbiome.” 

The abstract of the article stated: 

The editor in chief of the journal Food and Chemical Toxicology (FCT) has resigned with more than a year left of his term, according to an email announcing his move to colleagues. 

In the email, first reproduced in Steve Kirsch’s Substack newsletter, the editor, Jose L. Domingo, cited “deep discrepancies” with the journal’s direction under publisher Elsevier as the reason for his early resignation. He shared the email with us when we reached out for comment. 

Domingo, a professor of toxicology and environmental Health at the Universitat Rovira i Virgili in Spain, listed three main points of contention: an agreement for the journal to publish documents for the Research Institute for Fragrance Materials, which Domingo believed to be a “drag” on the journal’s impact factor; FCT’s recent designation as the official journal of the Chinese Society of Toxicology; and a February editorial he wrote requesting submissions “on the potential toxic effects of COVID-19 vaccines.” 

He wrote: 

A journal editor is defending his decision to publish a new paper showing that ivermectin can prevent Covid-19, despite more than a dozen retractions of such papers from the literature.

The article, “Regular Use of Ivermectin as Prophylaxis for COVID-19 Led Up to a 92% Reduction in COVID-19 Mortality Rate in a Dose-Response Manner: Results of a Prospective Observational Study of a Strictly Controlled Population of 88,012 Subjects,” appeared in Cureus August 31. 

The authors included Pierre Kory, a critical care specialist better known as the leader of the   Front-Line Covid-19 Critical Care Alliance, based in Madison, Wis.  Kory has been an active promoter of the use of ivermectin and other questionable remedies for  Covid-19 – even testifying before Congress about his ideas – although his most high-profile paper on the topic was retracted last November. 

In February, the editor-in-chief of Food and Chemical Toxicology published an editorial calling for “Papers on potential toxic effects of COVID-19 vaccines.” Following this call, in April 2022, the journal – no stranger to Retraction Watch readers –  published an article titled “Innate immune suppression by SARS-CoV-2 mRNA vaccinations: The role of G-quadruplexes, exosomes, and MicroRNAs.” 

At more than 16,000 words and more than 200 references, the article was submitted on February 9^th and accepted on April 8^th. It claims that “billions of lives are potentially at risk” with Covid-19 vaccines. 

Such an important statement should be supported by facts. But this is not at all the case. And yet the paper has been shared more than 45,000 times on social media, in ways that decrease trust in science and the COVID-19 vaccine, despite the robust evidence that it is both safe and efficient.

When a retracted paper is republished in a new journal, should it note the retraction?

A few readers have asked us that question as they forwarded a paper published in May in Environmental Research, an Elsevier title. The study, “Carbon dioxide rises beyond acceptable safety levels in children under nose and mouth covering: Results of an experimental measurement study in healthy children,” bore striking similarities to a paper by the same authors that was retracted from JAMA Pediatrics in July 2021. 

That retraction was the second for the paper’s first author, Harald Walach, who also lost an affiliation with a university in Poland. Walach tells us that he let the editor know about the JAMA Pediatrics retraction before he submitted the manuscript:

Researchers in Iran have lost a paper on Covid-19 infection in a two-month-old boy after the journal learned that they’d fabricated ethics approval for the article. 

It’s the 250th Covid-19 retraction by our count.

“Coronavirus disease 2019 in a 2-month-old male infant: a case report from Iran” appeared in December 2020 in Clinical and Experimental Pediatrics. The senior author of the paper was Sajjad Ahmadpour, of the Gastroenterology and Hepatology Diseases Research Center at Qom University of Medical Sciences.

According to the retraction notice (which doesn’t appear in the expected place but can be found here):