| Nomination for Nobel Prize in Physiology or Medicine | 
| Year: | 1950 | 
| Number: | 78 - 0 | 
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| Nominee 1: 
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| Name: | Oswald Theodore  Avery | 
| Gender: | M | 
| Year, Birth: | 1877 | 
| Year, Death: | 1955 | 
| Profession: | former dept head | 
| University: | Rockefeller Institute for Medical Research (now  Rockefeller University) | 
| City: | New York | 
| State: | NY | 
| Country: | UNITED STATES (US) | 
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| Nominee 2: 
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| Name: | Michael J Heidelberger | 
| Gender: | M | 
| Year, Birth: | 1888 | 
| Year, Death: | 1991 | 
| Profession: | prof biochemistry | 
| City: | New York | 
| State: | NY | 
| Country: | UNITED STATES (US) | 
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| Motivation: | Importance of capsular polysaccharides of the pneumococcus, isolation of the specific nucleo-protein of the pneumococcus. | 
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| Nominator: 
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| Name: | Otto  Loewi | 
| Gender: | M | 
| Year, Birth: | 1873 | 
| Year, Death: | 1961 | 
| Profession: | Nobel Laureate med 1936 | 
| Awarded the Nobel Prize in Physiology or Medicine 1936 | 
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