An Ontario man in his late 40s with a history of mental illness died by euthanasia after his assisted death assessors decided that the most reasonable explanation for his physical decline was a post COVID-19 “vaccination syndrome.”

The term is controversial — Canada’s current vaccine reporting system for adverse events doesn’t include “post-vaccine syndrome” — and multiple specialists consulted before his death couldn’t agree on a diagnosis, raising questions as to whether the man’s condition met the criteria for an “irremediable,” meaning a hopeless, incurable condition.