Yes, well, we all had plenty of good reasons to think bacterial. Nobody is scolding you.  Unfortunately, all of those clEver reasons were wrong. It is a virus infecting their hearts.
There was no sign of lymphcytosis in the blood tests.
This is a cross-section of the Chen-Lupino boy's myocardium. Fibrosis, lymphocydic infiltrates.
This is a cross-section of the Chen-Lupino boy's myocardium. Fibrosis, lymphocydic infiltrates. [SEP] There was no sign of lymphcytosis in the blood tests. [SEP] Yes, well, we all had plenty of good reasons to think bacterial. Nobody is scolding you.  Unfortunately, all of those clEver reasons were wrong. It is a virus infecting their hearts.