ALBERT C. ENGLAND III, M.D.; ROGER M. McKINNEY, Ph.D.; PETER SKALIY, Ph.D.; GEORGE W. GORMAN, B.S.
In September 1978, the Center for Disease Control (CDC) investigated an outbreak of Legionnaires' disease among persons who had attended the national Veterans of Foreign Wars convention held in Dallas, Texas, 17 to 25 August 1978 (1). Among 45 conventioneers who had radiographically diagnosed pneumonia, in seven there was seroconversion to Legionella pneumophila serogroup 1, 11 had single indirect fluorescent (IF) antibody titers of 256 or greater, and one had lung tissue positive by direct fluorescent (DF) antibody to serogroup 1 but not to serogroups 2 to 4 (2); 26 others had pneumonia without apparent bacterial cause and did not
ENGLAND AC, McKINNEY RM, SKALIY P, GORMAN GW. A Fifth Serogroup of Legionella pneumophila. Ann Intern Med. ;93:58–59. doi: 10.7326/0003-4819-93-1-58
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Published: Ann Intern Med. 1980;93(1_Part_1):58-59.
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