The spread of medical fake news in social media - The pilot quantitative study

Objectives: Fake news: misinformation and falsehood of health news in social media constitute a potential threat to the public health, but the scope of this issue remains unclear. Our pilot study is an initial attempt to measure a number of the top shared health misinformation stories in the Polish language social media. Methods: Using the BuzzSumo Application, a range of the top shared health web links in the Polish language social media was assessed during the period between 2012 and 2017. We used the following keywords which were related to the most common diseases and causes of death: cancer, neoplasm, heart attack, stroke, hypertension, diabetes, vaccinations, HIV, and AIDS. Each link was checked for the presence of fake news. Results: 40% of the most frequently shared links contained text we classified as fake news. These were shared more than 450,000 times. The most fallacious content concerned vaccines, while news about cardiovascular diseases was, in general, well sourced and informative. More than 20% of dangerous links from our material was generated by one source. Conclusions: Analyzing social media top shared news could contribute to identification of leading fake medical information miseducating the society. It might also encourage authorities to take actions such as put warnings on biased domains or scientifically evaluate those generating fake health news. (C) 2018 Fellowship of Postgraduate Medicine. Published by Elsevier Ltd. All rights reserved.