Instagram fact checks podcaster Liz Wheeler when she discussed studies that found face masks to be ineffective: Podcaster and former OAN host, Liz Wheeler, broke down the results of eight studies that examined the effectiveness of mask-wearing for the prevention of COVID-19 and other respiratory or "flu-like" diseases in an Instagram post. The eight studies were conducted in multiple countries from April of 2020 to February of 2021 and each of them found that mask-wearing had little to no statistically significant effect on the spread of viral disease. Instagram flagged her post discussing the scientific evidence with a recycled Health Feedback fact-check designed to disprove someone else's content. The fact-check did not dispute any of the facts she presented but rather offered a counter-narrative of other studies which came to different conclusions. Fact-checked posts lose exposure on Facebook feeds as they are negatively affected by the platform's algorithm. According to Facebook, users fail to click through a fact-check interstitial to see the post 95% of the time. Instagram, owned by Facebook, likely sees a similar effect.