Hospital Registry of Acute Myocarditis: Evolution of the Proportion of Positive SARS-COV-2 (COVID19) Cases

Inclusion Criteria: * Patients treated in ICCU or ICU (polyvalent, surgical or medical), in one of the participating hospitals, for symptoms of acute myocarditis confirmed by a myocardial MRI and/or a CT scan and/or a myocardial biopsy. It seems important to include elderly patients who may be under guardianship or curatorship since these patients seem to present the most severe forms. Additionally, the populations most affected by viral myocarditis are generally adolescents and young adults,which justifies including them in the study too. Pregnant women are a population at potentially greater risk, particularly during the third trimester because of the neuro-hormonal changes inherent in pregnancy. This justifies trying to implement the investigator's knowledge through this observational study. Exclusion Criteria: * Refusal to participate.