The Mayo Clinic’s version:
Severe myocarditis can permanently damage your heart muscle, possibly causing:
- Heart failure. Untreated, myocarditis can damage your heart's muscle so that it can't pump blood effectively. In severe cases, myocarditis-related heart failure may require a ventricular assist device or a heart transplant.
- Heart attack or stroke. If your heart's muscle is injured and can't pump blood, the blood that pools in your heart can form clots. If a clot blocks one of your heart's arteries, you can have a heart attack. If a blood clot in your heart travels to an artery leading to your brain before becoming lodged, you can have a stroke.
- Rapid or abnormal heart rhythms (arrhythmias). Damage to your heart muscle can cause arrhythmias.
- Sudden cardiac death. Certain serious arrhythmias can cause your heart to stop beating (sudden cardiac arrest). It's fatal if not treated immediately.
Since this is a novel virus, we don’t know how serious the heart damage will be and in how many people yet. That uncertainty is the problem. The other problem is that the myocarditis may be present in people who were asymptomatic. Say it is mild, but you, an athlete, didn’t know you had it, an continue practicing and playing. Then you’re not taking that 3-6 months off. What happens then? I’m not a doctor, so I don’t know, but I’m assuming the recommendation for time off is related to the possibility that you could do damage to the inflamed heart, turning it into a severe case. And, yes, we are doing weekly testing now, but we hadn’t been before camp, so it’s possible we have players who are in that scenario.