Microbes and infectious disease, 50 years ago

The following videos are short educational films made in the 1940s and 1950s and provide some basic knowledge on infectious diseases and microbiology. How much has this basic knowledge changed after half a century? Which specific statements in the videos should be changed (and why) if you wanted these films to comply with today's microbiology? Please leave any comments here.

Video no. 1: Bacteria footage (AVG-BF231) [on bacterial biology]




Video no. 2: Insects As Carriers of Disease (1945) [a Disney film]




Video no. 3: Outbreak of Salmonella Infection (1954)




The three videos were uploaded onto Google Video by A/V Geeks. They have been digitizing thousands of TV commercials held at Duke University’s Hartman Center for Advertising.