“…Although male predominance has been reported in postvaccine myocarditis (the mechanism of which is not fully elucidated), 13 data on sex in pericarditis are missing. In this perspective, the study by Collini et al 14 provides further insights into this field, in line with recent reports from AIFA 4 on similar frequency of postvaccine pericarditis in both sexes. Third, clinical presentation of postvaccine pericarditis was similar to that of forms unrelated to vaccination with chest pain as the predominant symptom (83% of cases) and typical findings on surface ECG such as widespread ST-segment elevation with PR depression, with a clinical onset at a median time of 7 days from vaccination.…”