On March 28, 1977, the worst outbreak of botulism in the nation’s history occurred when 59 people contracted the disorder after eating food at a Pontiac Mexican restaurant. The source : home canned peppers.
Though all but two of the victims were hospitalized — some in critical condition — through quick identification of the toxin, which was one of the deadliest poisons known, fatalities were averted.
Bryan Times via Google News, April 4, 1977.
Source: Mich-Again’s Day