The identification of pericardial effusions among a subset of individuals with symptoms and elevated antibody levels, hsCRP, and IL-6 among those with pericardial effusions raises the possibility that localized organ inflammation may be present beyond the early convalescent phase (2–3 months) where pericardial effusions have been noted in CMR studies (11, 12, 23, 24). This evidence concerns the gene IL6 and pericardial effusion.