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TEXAS - 1946 - The wartime invention of DDT is sprayed in Texas to stop the spread of infantile paralysis.
CIRCA 1946 - DDT is sprayed and gatherings of young children are prohibited in San Antonio, Texas in response to a polio outbreak.
Europe - 1944 - dispatch riders for the royal canadian army service corps ride harley-davidson motorcycles through dangerous terrain.
CIRCA 1940s - DDT insecticide is sprayed throughout the city of San Antonio to kill germs that were linked to child paralysis in 1946 in Texas.
CIRCA 1940s - An insecticidal fog is sprayed in a park and downtown and a stream is treated with DDT as well as a house.
1940s: DDT insecticide is sprayed throughout the city of San Antonio to kill germs that were linked to child paralysis in 1946 in Texas.
CIRCA 1945 - Civilians flee as American and Japanese forces fight in Manila.

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1097310161
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Stock 비디오 ID: 1097310161

CIRCA 1946 - DDT의 전시 발명은 유아 마비의 확산을 막기 위해 텍사스에 뿌려진다.

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