Actually what happened with the 2010 swine flu vaccine was that people developed narcolepsy starting about a year after the first shots were administered (many

Actually what happened with the 2010 swine flu vaccine was that people developed narcolepsy starting about a year after the first shots were administered (many of them to people who were never at particularly high risk from the swine flu itself). It took about another year after those symptoms first arose for authorities to acknowledge the link to Pandemrix.