This happens a lot with the flu, also.

For example, here's a paper going over heart inflamation and the flu, going over data gathered in the last 100 years [0].

Here's one of many references to myocarditis, this one happens to be from mild cases of the flu:

> During the Sheffield, England influenza epidemic from 1972 to 1973, the cases of 50 consecutive patients who were initially diagnosed as mild cases and were treated on an outpatient basis were followed. Transient electrocardiogram (ECG) changes were seen in 18 patients, and long-lasting changes were seen in 5 patients.

The paper is full of other examples. I didn't know this as common as it appears to be.

[0] http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.685...