In 1939, Paul Hermann Müller<ref>In 1948 Müller was awarded the Nobel Prize in Physiology or Medicine "for his discovery of the high efficiency of DDT as a contact poison against several arthropods."</ref>, a Swiss chemist working for Geigy Pharmaceutical, discovered its pesticidal qualities. It was soon put to good use by Allied forces in World War II to help control [[malaria]] and [[typhus]], especially in the Asian and Pacific theatres. | In 1939, Paul Hermann Müller<ref>In 1948 Müller was awarded the Nobel Prize in Physiology or Medicine "for his discovery of the high efficiency of DDT as a contact poison against several arthropods."</ref>, a Swiss chemist working for Geigy Pharmaceutical, discovered its pesticidal qualities. It was soon put to good use by Allied forces in World War II to help control [[malaria]] and [[typhus]], especially in the Asian and Pacific theatres. |