‘When appropriate, the updated safety data will be published,’ a CDC spokesman said.

The U.S. Centers for Disease Control and Prevention (CDC) is refusing to release updated information on reported cases of myocarditis and pericarditis following COVID-19 vaccination.

COVID-19 vaccines can cause the inflammatory conditions, the CDC previously confirmed.

The agency has regularly conveyed the number of post-vaccination myocarditis and pericarditis cases reported to the Vaccine Adverse Event Reporting System (VAERS), which it helps manage, as it has consulted with its advisers on updates to the vaccines.