Wayne Sebastianelli was clear that B10 hasn& #39;t cardiac MRI& #39;d every athlete who tested positive for Covid. However, among ones that were cardiac MRI& #39;d (don& #39;t know number or why they were MRI& #39;d) about 1/3 "had the level of inflammation that was determined to be myocarditis."

He acknowledged that some experts "feel this is a finding that is incidental and may not warrant any further investigation or concern. And they’ll let somebody compete again" after things clear up.

He said he didn& #39;t know of any comparable tests involving the flu, but said this is a different virus. Was very open about his uncertainty. He specially said there is a need for more study and testing to learn about this. It& #39;s a pretty nuanced and lengthy conversation.

This being Twitter, his comments were praised/condemned wholly. In truth, they are way more down the middle. This is a very reasonable person: "we really want to study this further to understand what is happening with the student athlete."

One more thing: it wasn’t a “study.” It appears he got this info somewhat informally from other athletic doctors from other schools, which may explain the rough numbers.