Long COVID is a collection of health problems caused by COVID-19 that remain or appear following the initial infection. It is implausible that face masks cause long COVID, contrary to claims made online. Mask use can temporarily cause discomfort, but physiological effects are not biologically meaningful.
People online are touting the results of a Cochrane review to incorrectly claim that it shows masks “don’t work” against the coronavirus. But the primary conclusion of the review is that it’s uncertain from randomized controlled trials whether mask interventions in the community help slow the spread of respiratory illnesses.
The delta variant of the coronavirus that causes COVID-19 is more transmissible than previous forms of the virus, and has helped spur an increase in cases, including in children. But a chiropractor in a Facebook video wrongly claims that “it is not showing more of a problem.” That’s one of several misleading and false claims he makes about COVID-19.
In a viral video, an Indiana physician baselessly claimed that the COVID-19 vaccines, which have been shown to be safe and effective, “fight the virus wrong and let the virus become worse than it would with native infection.” He also incorrectly said no vaccine prevents infection and contended that people previously infected with COVID-19 do not benefit from vaccination, despite studies that suggest otherwise.
Thousands of pages of redacted emails to and from Dr. Anthony Fauci are now publicly available, thanks to journalists’ Freedom of Information Act requests. Some of those messages have been distorted in viral posts, particularly about face masks, the origins of the coronavirus and the effectiveness of hydroxychloroquine.
Stanford Medicine says it “strongly supports the use of face masks to control the spread of COVID-19.” Yet viral stories falsely claim a “Stanford study” showed that face masks are unsafe and ineffective against COVID-19. The paper is a hypothesis, not a study, from someone with no current affiliation with Stanford. Update: The paper was retracted.