Westinghouse broadcasting and pittsburgh teamed up with the American Medical Association, the u. S. Public Health Service and the university of pittsburgh to produce the silent invader. The film is from the digital cle collections of the u. S. Library. The Westinghouse Broadcasting company and university of pittsburgh one of the nations Major Health Centers in cooperation with the American Medical Society and the United States public Health Service bring you the silent invader. An uptotheminute report on asian influenza. How do you do . Ill carl ives. Throughout history, mankind has been forced to wage many battles in order to protect his family or nation against misfortune, disaster or even possible extinction. Sometimes these wars have been, well, theyve been catastrophic. There was a catastrophe in 1918 when an influenza epidemic swept through our own nation as well as the entire world. Unlike the battles of nation against nation, or humanity against the forces of nature, when man i