BRNO, Czech Republic: Reports of oral symptoms after COVID-19 vaccination have recently re-entered online debate after the publication of a pharmacovigilance study analysing safety reports submitted to the Paul-Ehrlich-Institut (PEI), an agency of the German Federal Ministry of Health. The study examined nearly one million individual case safety reports, offering one of the most comprehensive overviews to date of oral complaints recorded after vaccination in Germany. Its findings were cautious in interpretation and presented as part of routine safety monitoring by European regulators. However, the study has since been reframed by some anti-vaccine and vaccine-sceptical platforms as evidence that COVID-19 vaccines cause oral disease—even though the study does not assess causality.