[BostonCard]

I agree this is potentially very alarming.
But what I have no sense of is this:  is such heart inflammation (or whatever) an omnipresent, common, rare, never kind of thing after suffering some kind of viral ailment?  And can kids have it irrespective of Covid 19?
Separately, can your condition recede with time?  Or is it permanent?

That was a long article with partial answers here and there.  But maybe that's all we can expect now, as things are still fluid.

Good questions.  Influenza doesn't cause a myocarditis, but there are many viruses which do, most prominently coxsakieviruses.  Myocarditis is pretty rare in children (I saw an incidence of 1 or 2 kids per 100,000, but that includes all types of pediartic myocarditis, of which viral is the most common cause).  On the other hand, that is just diagnosed (symptomatic) myocarditis; we don't know how many kids with viral illnesses would have shown inflammation in the heart tissue had they had MRI's in the period after infection.

COVID-19 does seem to cause it more commonly than other diseases, though I'm still not completely clear if it is caused by direct viral infection of the heart, or as a systemic inflammatory response.  I most will recover, though that is speculation on my part.  We ultimately don't know for sure what the long-term consequences of the virus are.  We are 9 months from the first person having been infected, so not a lot of long-term follow-up data.

BC

[BostonCard]

I agree this is potentially very alarming.
But what I have no sense of is this:  is such heart inflammation (or whatever) an omnipresent, common, rare, never kind of thing after suffering some kind of viral ailment?  And can kids have it irrespective of Covid 19?
Separately, can your condition recede with time?  Or is it permanent?

That was a long article with partial answers here and there.  But maybe that's all we can expect now, as things are still fluid.

Good questions.  Influenza doesn't cause a myocarditis, but there are many viruses which do, most prominently coxsakieviruses.  Myocarditis is pretty rare in children (I saw an incidence of 1 or 2 kids per 100,000, but that includes all types of pediartic myocarditis, of which viral is the most common cause).  On the other hand, that is just diagnosed (symptomatic) myocarditis; we don't know how many kids with viral illnesses would have shown inflammation in the heart tissue had they had MRI's in the period after infection.

COVID-19 does seem to cause it more commonly than other diseases, though I'm still not completely clear if it is caused by direct viral infection of the heart, or as a systemic inflammatory response.  I most will recover, though that is speculation on my part.  We ultimately don't know for sure what the long-term consequences of the virus are.  We are 9 months from the first person having been infected, so not a lot of long-term follow-up data.

BC