1976 Philadelphia Legionnaires' disease outbreak States Center for Disease Control and Prevention (CDC) in 2017 only use the term Legionnaires' disease to refer to the serious version with pneumonia. CDC investigators quickly discovered outbreaks of respiratory disease caused by "L. pneumophila" dating back to 1959. An outbreak of what was dubbed Pontiac fever occurred in a health department in Pontiac, Michigan in July 1967. No one died. Although caused by the same bacterium, Pontiac fever is a milder ailment than Legionnaires' disease. Pneumonia is absent in those with Pontiac fever. An outbreak of pneumonia in July–August, 1965, at St. Elizabeths Hospital in Washington, DC, which
Polish Legion of American Veterans U.S. military veterans after World War I. Its lineage begins with the Alliance of Polish-American Veterans, created in the summer of 1920 after a gathering of veterans from Illinois, Ohio, and Wisconsin in Hawthorne, Illinois. In December 1920, this association held a provisional convention and in September 1921 it held its first regular convention, at which they changed their name to the "Alliance of American Veterans of Polish Extraction." In September 1931 the Alliance of American Veterans of Polish Extraction merged with the Polish Legion of the American Army and a veteran's organization from Michigan to form the PLAV. On