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
American Legion part of this was drum and bugle corps competition in which approximately 14,000 members took part. The American Legion Memorial Bridge in Traverse City, Michigan, was completed in 1930. The Traverse City city commission decided to purchase dedication plaques for $100 at the request of The American Legion in 1930. The Sons of the American Legion formed at The American Legion's 14th National Convention in Portland, Oregon, on September 12–15, 1932. Membership is limited to the male descendants of members of The American Legion, or deceased individuals who served in the armed forces of the United States during times specified