1976 Philadelphia Legionnaires' disease outbreak killed 16 persons out of 78 infected was later determined to be Legionnaires' disease. A September 1974 convention of the Independent Order of Odd Fellows was also held at the Bellevue-Stratford Hotel. Out of approximately 1,500 members who attended, 20 developed pneumonia and two died. A later article in "The Lancet" reported: "Illness [high fever and pneumonia] was significantly associated with attendance at one convention activity held on Monday morning, September 16, 1974, in the grand ballroom of the hotel." 1976 Philadelphia Legionnaires' disease outbreak The 1976 Legionnaires disease outbreak, occurring in the late summer in Philadelphia, Pennsylvania, was the
Epidemiology of pneumonia case fatality rate in the UK is around 5–10%. In the United States, community-acquired pneumonia affects 5.6 million people per year, and ranks 6th among leading causes of death. In 2009, there were approximately 1.86 million emergency department encounters for pneumonia in the United States. In 2011, pneumonia was the second-most common reason for hospitalization in the U.S., with approximately 1.1 million stays—a rate of 36 stays per 10,000 population. Pneumonia was one of the top ten most expensive conditions seen during inpatient hospitalizations in the U.S. in 2011, with an aggregate cost of nearly $10.6 billion for 1.1 million