Legionnaires' disease that occur globally is not known. Legionnaires' disease is the cause of an estimated 2-9% of pneumonia cases that are acquired outside of hospital. An estimated 8,000 to 18,000 cases a year in the United States require hospitalization. Outbreaks of disease account for a minority of cases. While it can occur any time of the year, it is more common in the summer and fall. The disease is named after the outbreak where it was first identified, at a 1976 American Legion convention in Philadelphia. The length of time between exposure to the bacteria and the appearance of symptoms is
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