1976 Philadelphia Legionnaires' disease outbreak failed. The disease was finally produced in guinea pigs. The CDC announced the discovery at a press conference on January 18, 1977. The bacterium was later named "Legionella pneumophila". "Legionella pneumophila" is the most common cause, but sometimes other species of Legionella bacteria also cause Legionnaires' disease. The terms "Philadelphia fever" and "Legion fever" appear to have been used at the time of the outbreak and for shortly thereafter, although at least one 2008 source which covers disease in a historical narrative sense also included "Legion Fever" as alternate name. Both the World Health Organization in 2018 and the United
Tornado outbreak sequence of June 1966 Tornado outbreak sequence of June 1966 The Tornado outbreak sequence of June 1966 was a series of tornado outbreaks which occurred between June 2 and June 12. The most destructive tornado of this event occurred on the early evening of Wednesday, June 8, 1966, when Topeka, Kansas was struck by an F5 rated tornado. It started on the southwest side of town, moving northeast, passing through several subdivisions and over a local landmark named Burnett's Mound. 57 tornadoes were confirmed during the 11-day span, which left 18 people dead and 543 injured. According to a local Native American legend, Burnet's