William McDowell Hammon (July 4, 1904 – September 19, 1989) was an American physician and researcher, best known for his work on

poliomyelitis Poliomyelitis ( ), commonly shortened to polio, is an infectious disease caused by the poliovirus. Approximately 75% of cases are asymptomatic; mild symptoms which can occur include sore throat and fever; in a proportion of cases more severe ...

. In his early twenties and prior to becoming a research physician, Hammon worked for four years as a medical

missionary A missionary is a member of a Religious denomination, religious group who is sent into an area in order to promote its faith or provide services to people, such as education, literacy, social justice, health care, and economic development.Thoma ...

in the former

Belgian Congo The Belgian Congo (, ; ) was a Belgian colonial empire, Belgian colony in Central Africa from 1908 until independence in 1960 and became the Republic of the Congo (Léopoldville). The former colony adopted its present name, the Democratic Repu ...

. After returning, he received his undergraduate degree from

Allegheny College Allegheny College is a private liberal arts college in Meadville, Pennsylvania, United States. Founded in 1815, Allegheny is the oldest college in continuous existence under the same name west of the Allegheny Mountains. It is a member of the G ...

in 1932. Completing his medical training at

Harvard Medical School Harvard Medical School (HMS) is the medical school of Harvard University and is located in the Longwood Medical and Academic Area, Longwood Medical Area in Boston, Massachusetts. Founded in 1782, HMS is the third oldest medical school in the Un ...

in 1936, Hammon then studied with the

bacteriologist A bacteriologist is a microbiologist, or similarly trained professional, in bacteriology— a subdivision of microbiology that studies bacteria, typically Pathogenic bacteria, pathogenic ones. Bacteriologists are interested in studying and learnin ...

Hans Zinsser Hans Zinsser (November 17, 1878 – September 4, 1940) was an American physician, bacteriologist, and prolific author. The author of over 200 books and medical articles, he was also a published poet. Some of his verses were published in '' ...

, receiving a

Master of Public Health The Master of Public Health (MPH), Master of Science in Public Health (MSPH), Master of Medical Science in Public Health (MMSPH) and the Doctor of Public Health (DrPH), International Masters for Health Leadership (IMHL) are interdisciplinary profes ...

degree in 1938, and a Doctor of Philosophy degree in 1939. During this period Hammon co-discovered the first

vaccine A vaccine is a biological Dosage form, preparation that provides active acquired immunity to a particular infectious disease, infectious or cancer, malignant disease. The safety and effectiveness of vaccines has been widely studied and verifi ...

for feline panleucopenia. Hammon was presented with the

Medal of Freedom The Presidential Medal of Freedom is the highest civilian award of the United States, alongside the Congressional Gold Medal. It is an award bestowed by decision of the president of the United States to "any person recommended to the President ...

in 1946 by President

Harry Truman Harry S. Truman (May 8, 1884December 26, 1972) was the 33rd president of the United States, serving from 1945 to 1953. As the 34th vice president in 1945, he assumed the presidency upon the death of Franklin D. Roosevelt that year. Subsequen ...

. In 1949 Harmon was elected president of the

American Society for Microbiology The American Society for Microbiology (ASM), originally the Society of American Bacteriologists, is a professional organization for scientists who study viruses, bacteria, fungi, algae, and protozoa as well as other aspects of microbiology. It wa ...

References

Further reading