1953 U.S. military releases clouds of zinc cadmium sulfide gas over Winnipeg, St. Louis, Minneapolis, Fort Wayne, the Monocacy River Valley in Maryland, and Leesburg, Virginia. Their intent is to determine how efficiently they could disperse chemical agents.
Its pathogenesis gives symptoms corresponding to very low forms of disease, as in cholera, Yellow fever, where, with exhaustion, vomiting, and Extreme prostration, the disease runs death ward. Important gastric symptoms. Carcinoma ventriculi; persistent vomiting. The attack is upon the stomach more especially. Patients must keep quiet. Chilliness and coldness even when near the fire.