
1976: President Gerald Ford orders a nationwide vaccination program to prevent a swine-flu epidemic.
Ford was acting on the advice of medical experts, who believed they were dealing with a virus potentially as deadly as the one that caused the 1918 Spanish influenza pandemic.
The virus surfaced in February at Fort Dix, New Jersey, where 19-year-old Pvt. David Lewis told his drill instructor that he felt tired and weak, although not sick enough to skip a training hike. Lewis was dead with 24 hours.