Ehrlich helped Emil von Behring find an antitoxin for diphtheria. Diphtheria is a disease that particularly affects children and sometimes leads to death. In 1894, mothers no longer had to worry about their child dying of diphtheria because of Ehrlich's help in the discovery of the antitoxin for the deadly disease.

Another discovery Ehrlich made was of a dye called trypan red. Trypan red helped destroy cells that caused sleeping sickness. His research of antibodies and understanding how the antibodies attack harmful substances that enter the body has made him the "founder" of modern chemotherapy.

Ehrlich is best known for his work on curing syphilis. Syphilis is an infectious disease transmitted by sexual contact or kissing. Ehrlich named the compound that cured syphilis "salvarsan". This was a very effective way to cure syphilis.

Leyden, John G. From Nobel Prize to Courthouse Battle; Paul Ehrlich's 'Wonder Drug' for Syphilis Won Him Acclaim but Also Led Critics to Hound Him. The Washington Post. Page Z16. July 27, 1997.

2. Details of Major Work or Major Discovery

Ehrlich's major contribution to biology was his work on the immune system. He made the foundation for many scientists after him to discover cured for diseases. Without this contribution, we could still quite possibly have a life expectancy rate of 40 years.

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