COVID-19(9) SARS-CoV-2(6) Autopsy(6) heart(6) Inflammation(5) macrophages(4) disease(4) myocarditis(4) Comorbidities(4) Cohort(4) significant increase(3) CD68+ cells(3) cardiovascular system(3) Cell(3) CD68 cells(3) CD8+ cell(3) Lineage(3) (hypertension(3) skewed distribution(3) CD4+(3) Comorbidity(3) Diffuse alveolar damage(3) study cohort(3) appear(3) infiltrative(3) incidence(3) severe disease(3) Quantitative analysis(3) obesity(3) positive patients(3)