Original: The Swiss chemist Paul Hermann Müller of Geigy Pharmaceutical was awarded the Nobel Prize in Physiology or Medicine in 1948 '' for his discovery of the high efficiency of DDT as a contact poison against several arthropods .
Simplified: The Swiss chemist Paul Hermann Müller was awarded the Nobel Prize in Medicine in 1948 , for his discovery.NobelPrize.org : The Nobel Prize in Physiology or Medicine 1948 Accessed July 26 , 2007 .