mRNA Covid Vaccines Greatly Increase Endothelial Inflammatory Markers and ACS [pdf] (cdc.gov)

From slide 4: "Cases [of myocarditis] have tended to be clinically mild"

I'm not a cardiologist but is there really such thing as a "mild" case of myocarditis? I'm pretty sure that's not a condition I would ever want to affect my heart.

I couldn’t find the headline/title anywhere in the slides. Where is that from?

I couldn't find that in the PDF at all.

What I did find:

• Cases have tended to be clinically mild