The Italian Medicines Agency would like to inform you of the following:

• Cases of myocarditis and pericarditis have been reported very rarely following vaccination with the COVID-19 mRNA Vaccines Comirnaty and Spikevax.
• The cases primarily occurred within 14 days after vaccination, more often after the second dose and in younger men. 
• Available data suggest that the course of myocarditis and pericarditis following vaccination is similar to the course of myocarditis and pericarditis in general.  
• Healthcare professionals should be alert to the signs and symptoms of myocarditis and pericarditis. 
• Healthcare professionals should advise vaccinated individuals to seek immediate medical attention should they experience chest pain, shortness of breath, or palpitations.