Two remarkable stories from Bioterrorism and Biocrimes by W. Seth Carus
"In early 1991, several French physicians reported on a case in which a 41-year-old woman tried to commit suicide by injecting herself with two to three milliliters of HIV-contaminated blood taken from a friend who had AIDS. Two hours after the event, she went to a hospital emergency room, where she was treated with zidovudine. Despite the treatment, three months after the injection laboratory tests indicated that she was infected with HIV."
"According to an official of the U.S. Department of Agriculture, Mexican contract workers involved in a screwworm eradication program may have deliberately spread that pathogen among livestock. Although the perpetrators were never charged, the workers apparently spread the screwworm because they were seeking to protect their jobs, which would have disappeared once the parasites were eliminated. The releases apparently took place in an area of Mexico about 50 miles south of the border with the United States."