The Seven Dwarfs' battle against malaria
In this short Disney film (The Winged Scourge, 1943), the Seven Dwarfs teach us how to protect ourselves from the mosquitoes that transmit malaria. But some of their methods may not be quite advisable today...
Thanks to MicrobeWorld for letting me know about this video!
A collection of old Disney documentaries (including this one) can be viewed at thelostdisney channel on YouTube.