What microorganisms may cause pericarditis?

What events may precede acute pericarditis?

Do metabolic disorders play a role in pericarditis development?

Is acute pericarditis related somehow to myocardial infarction?

What kind of disease is acute pericarditis?

Is tuberculosis a frequent cause of pericarditis in the USA?

Is it necessarily treated in a hospital?

What are the symptoms of acute pericarditis?