From the bottle cap challenge to Kylie Jenner's "rise and shine," we saw a ton of viral moments in 2019.

Forbes contributors publish independent expert analyses and insights. John Brandon covers social media trends. @johnbrandonmn The question to answer right away is: What does it mean to go viral on ...

Myositis is a group of conditions that cause muscle inflammation and weakness. Viral myositis occurs as a complication of a viral infection, such as influenza viruses or enteroviruses. Viral myositis, ...

For years, “going viral” has been viewed as the ultimate marketing win—a single piece of content skyrocketing to massive visibility seemingly overnight. However, virality may not always deliver the ...