Basically, these are films that were created by the United States Department of Health created in the 1950s created in a series of videos showcasing to people how diseases are caused and spread through incompetence. Honestly, the National Library of Medicine's YouTube account is a goldmine of historical videos showcasing somewhat archaic short films with advice that can now be regarded as dubious (particularly in the field of mental health).

The only issue, though, is that Staphylococcus... is the scientific name for staph infections, and that short film doesn't really have the unintentional humor of people running for the bathroom. I just brought it up as its a sister film.

https://www.youtube.com/watch?v=pQ5xzKqwmIQ&ab_channel=NationalLibraryofMedicine (Salmonella)

https://www.youtube.com/watch?v=KzqcVBv3oDU&ab_channel=NationalLibraryofMedicine (Staphylococcus)