A soldier demonstrates personal DDT application during the second World War. DDT was considere
A soldier demonstrates personal DDT application during the second World War. DDT was considered an important method of preventing body lice, which spread typhus. Typhus, which thrives in wartime conditions, where bodies are not clean and soldiers are packed together, killed millions during the World War I. DDT’s ability to kill insects was discovered in 1939, used widely in the 1940s and 1950s, and then taken largely out of circulation after it was shown to cause cancer and kill wildlife.{WHF} {HTE} -- source link
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