Defense Against Invasion
A doctor persuades a group of boys to be vaccinated by explaining how it will protect them against disease. Animated sequences depict the body metaphorically as a city, defended by the blood cells, which are stimulated by vaccination to amass arms and ammunition, in order to defend the city when it is invaded by germs.
- Year: 1943
- Country: United States of America
- Genre: Animation, Documentary
- Studio: Walt Disney Productions
- Keyword: propaganda, wartime, health, vaccine, educational, short, psa
- Director: Jack King
- Cast: