The US in the summer 1976  was racing to develop a vaccine for a new virus call swine flu.  The academics, using anecdotal data, had predicted a death toll double that of Spanish flu and President Ford had to vaccine everyone before his re-election.  The pandemic never took hold and 4,000 were made disable or died thanks the government agency not disclosing the risk of the vaccine.   Good job we have learnt the lessons of the past.