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
Community-acquired pneumonia monocytogenes" and a variety of mycobacteria. CAP-causing viruses may also be transferred from mother to child; herpes simplex virus (the most common) is life-threatening, and adenoviridae, mumps and enterovirus can also cause pneumonia. Another cause of CAP in this group is "Chlamydia trachomatis", acquired at birth but not causing pneumonia until two to four weeks later; it usually presents with no fever and a characteristic, staccato cough. CAP in older infants reflects increased exposure to microorganisms, with common bacterial causes including "Streptococcus pneumoniae", "Escherichia coli", "Klebsiella pneumoniae", "Moraxella catarrhalis" and "Staphylococcus aureus". Maternally-derived syphilis is also a cause of CAP