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1970 ascariasis poisoning incident
The 1970 ascariasis poisoning incident was a poisoning incident that took place in Quebec in February, 1970. At least seven people claimed to have been infected with parasitic worm eggs by Eric Kranz, a former postgraduate student from Hempstead, New York.〔Carus, W. Seth. (Working Paper: Bioterrorism and Biocrimes, The Illicit Use of Biological Agents Since 1900 ), p.61, Center for Counterproliferation Research, ''National Defense University'' (Washington, D.C. Feb. 2001)〕〔(FDA/CFSAN Risk Assessment for Food Terrorism and Other Food Safety Concerns )〕 The victims were Canadians Richard Davis, William Butler, David Fisk, and Keith Fern, with three other friends and acquaintances reported to be mildly infested. Doctors said that one of the men may have been affected by as many as 400,000 larvae.
Eric Kranz was a 23-year-old postdoctoral student in parasitology at Macdonald College in Sainte-Anne-de-Bellevue, Quebec. He shared a house with four roommates: Davis, Butler, Fisk, and Fern. The roommates were at odds with Kranz, who had not paid rent totalling $16.66, and asked him to move out. Kranz became agitated and allegedly told the roommates, "I'll put parasites in your food and you'll wake up dead". Kranz did pay the full rent balance on January 31, but the roommates evicted him anyway. Some time around February 1, Kranz prepared a festive Winter Carnival dinner for his roommates, and allegedly tainted the food with eggs stolen from the university laboratory where he studied.〔Carus, W. Seth. (Working Paper: Bioterrorism and Biocrimes, The Illicit Use of Biological Agents Since 1900 ), p.14, Center for Counterproliferation Research, ''National Defense University'' (Washington, D.C. Feb. 2001)〕 The roommates were hospitalized around February 12, and Kranz left Quebec a couple of days later. As the medical investigation continued, doctors suspected poisoning and authorities were notified. On February 25 Kranz was charged with attempted murder and a warrant was sought for his arrest.〔''Police hunt student who put pig parasite in food'', The Baltimore Afro-American, February 28, 1970.〕 He returned voluntarily to Quebec, surrendered to authorities on the 9th of March, pleaded not guilty, and was remanded on bail.
==Trial and acquittal==
Kranz went on trial in June, 1971, charged with intentionally endangering the lives of his four roommates. There was expert evidence before the court consistent with the presence of ascaris larvae in the bodies of two of the complainants: however, opinions from three other laboratory sources were not available. The defence further claimed that the infection could have occurred by way of a recurring sewage backup into the kitchen sink of the house: a version of events which was denied by at least one of the complainants. Kranz also pointed out in the course of his testimony that his roommates could have come into contact with ascariasis eggs simply by handling his clothing. Following consideration of the evidence, Judge Gerard Laganiere held that there was insufficient evidence to demonstrate the defendant's guilt beyond a reasonable doubt, and Kranz was acquitted.〔The Montreal Gazette, 10th June, 1971 (Ex-student is acquitted in parasite poison case )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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