On Thursday, Twitter applied a warning label to a post of a study abstract from the American Heart Association website AHA Journals that expresses concern over mRNA vaccines and heart disease.
The abstract was written by Steven Gundry, MD at the International Heart & Lung Institute in California.
When attempting to open the link, one is redirected to another Twitter page with the warning: "this link may be unsafe."
Previously, this warning system was only used in the case of spam, malware risks, and other deceptive means of soliciting clicks or information. However, its scope has been expanded to include "violent and misleading content that could lead to real world harm" and "certain categories of content that, if posted directly on Twitter, are a violation of the Twitter rules."
The study is not currently peer-reviewed.
The Epoch Times reached out to Twitter for comment.