Watch Defense Against Invasion (1943) Online
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- RUNTIME: 0h 12m
- COUNTRIES: United States of America
- Subtitles: English
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.
