San Francisco Chronicle – January 10, 1977 – Front page

With at least the tacit backing of U.S. Central Intelligence Agency officials, operatives linked to anti-Castro terrorists introduced African swine fever virus into Cuba in 1971.

Six weeks later an outbreak of the disease forced the slaughter of 500,000 pigs to prevent a nationwide animal epidemic.

A U.S. intelligence source told Newsday last week he was given the virus in a sealed, unmarked container at a U.S. Army base and CIA training ground in the Panama Canal Zone, with instructions to turn it over to the anti-Castro group.