The agency never informed the public about the findings made while analyzing data from its Vaccine Safety Datalink system.

The U.S. Centers for Disease Control and Prevention (CDC) and its partners uncovered signs that the Pfizer-BioNTech and Moderna COVID-19 vaccines might cause the persistent condition called tinnitus but never disclosed the findings to the public, The Epoch Times can report.

The signs were found while analyzing data from the CDC’s Vaccine Safety Datalink (VSD), which has been described as one of the stronger CDC surveillance systems because it utilizes health care records.

The detection of the signs came just after the CDC told a reporter that there were no signs of large numbers of cases of tinnitus, which commonly manifests as a constant ringing in the head, following COVID-19 vaccination, documents obtained by The Epoch Times show.