Shedding light on LinkedIn’s enforcement of health misinformation policies: A pilot study

2022-04-26

Summary of findings The career- and business-oriented social media platform LinkedIn has been absent from the public conversation around the topic of health misinformation, as compared to more informal platforms like Facebook and Twitter. While LinkedIn’s policies state that it prohibits “content directly contradicting guidance from leading global health organizations and public health authorities”, anecdotal … Continued


Following the misinformation URL trail to identify key spreaders: A case study on Twitter

2022-04-15

Introduction As social media platforms try to tackle the spread of misinformation, their first challenge is the reliable identification of which content breaches their misinformation policy. Like everything in the social media space, this has to be done at a very large scale if it is to have any meaningful impact. Once identified, such content … Continued


Assessing the effect of COVID-19 vaccines on mortality: a story of confounding factors and their role in COVID-19 misinformation

2022-03-15

Introduction COVID-19 vaccines have been instrumental in our fight against the pandemic and our return to a normal life, thanks to their ability to reduce the number of cases, hospitalizations, and mortality. Their effectiveness against severe COVID-19 and death was proven in randomized controlled trials (RCT) that involved tens of thousands of people[1,2]. While RCTs … Continued


Infection-induced immunity versus vaccine-induced immunity: Weighing the benefits and risks

2021-11-03

Introduction Multiple articles and social media posts have debated the strength of infection-induced immunity​​—commonly referred to as natural immunity—compared to vaccination when it comes to the best protection against COVID-19. Public health authorities like the U.S. Centers for Disease Control and Prevention (CDC) have recommended that previously infected people get vaccinated. But scientific studies have … Continued


Statements in Project Veritas video contradict public health authorities and experts’ recommendation for eligible children to be vaccinated against COVID-19

2021-10-02

Introduction On 27 September 2021, the group Project Veritas published a video on several social media platforms, including Facebook, Instagram, and YouTube, containing claims that children don’t need to get a COVID-19 vaccine and that the long-term safety of COVID-19 vaccines is uncertain. The claims are based on an interview with two people identified in … Continued


Copypasta of an ICU doctor’s tweet stokes COVID-19 skepticism by mimicking bot-like behavior

2021-07-29

Introduction The spread of the Delta variant of SARS-CoV-2 has put many countries back on high alert. Both the U.S. and the U.K. have seen the Delta variant become the predominant cause of COVID-19 cases. However, one thing is clear: the COVID-19 vaccines authorized for use in the U.S. remain highly effective even against the … Continued


Understanding causality in adverse events after vaccination

2021-07-15

Introduction Whether you’re watching the news or scrolling through your social media feeds, you’re certain to come across content about COVID-19 vaccines. This is unsurprising—vaccine safety, and in particular adverse events occurring after COVID-19 vaccination, have been the subject of scrutiny from regulatory agencies, scientists, and the public. While it’s critical to be vigilant and … Continued


What has been the effect of the pandemic on the suicide rate of the U.S. population?

2021-06-21

Introduction The COVID-19 pandemic prompted countries everywhere to take measures to reduce the spread of the disease. One of these measures, which has proven to be effective (as covered in several Health Feedback claim reviews here, here, and here) but hasn’t been without controversy, is lockdown. Lockdowns consist of limiting certain activities by the general … Continued


What is known about the claims that the Wuhan Institute of Virology conducted research to bioengineer bat coronaviruses?

2021-06-15

Image: Scanning electron microscope image showing SARS-CoV-2 (round gold objects) emerging from the surface of cells cultured in the lab. Credit NIAID-RML Introduction One of the questions currently being debated about the origin of COVID-19 is whether the U.S. National Institutes of Health (NIH) funded research on bat coronaviruses that could cause a virus to … Continued


How were mRNA vaccines developed for COVID-19?

2021-06-02

The vaccines for COVID-19 produced by Pfizer-BioNTech and Moderna were the first mRNA vaccines authorized for use in the general public. mRNA vaccines were a long-standing ambition for scientists, as it was hoped that they would offer many advantages over traditional vaccines[1]. However, there were significant technical challenges that took decades to overcome. How do … Continued