Alphonse Dochez
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Alphonse Raymond Dochez (April 21, 1882 – June 30, 1964) was an American
physician A physician (American English), medical practitioner (Commonwealth English), medical doctor, or simply doctor, is a health professional who practices medicine, which is concerned with promoting, maintaining or restoring health through th ...
and microbiologist. His research focused on infectious diseases, including scarlet fever, the common cold, and
pneumococcal pneumonia Pneumococcal pneumonia is a type of bacterial pneumonia that is caused by Streptococcus pneumoniae (pneumococcus). It is the most common bacterial pneumonia found in adults, the most common type of community-acquired pneumonia, and one of the ...
. Dochez is credited with developing the first effective treatment for scarlet fever. His work also established
virus A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. Since Dmitri Ivanovsk ...
es as the cause of the common cold.


Early life and education

Dochez was born in San Francisco to Louis and Josephine Dietrich Dochez. His family is of Belgian descent. Dochez moved to Indianapolis as a young child, then later to
Harford County Harford County is located in the U.S. state of Maryland. As of the 2020 census, the population was 260,924. Its county seat is Bel Air. Harford County is included in the Baltimore-Columbia-Towson, MD Metropolitan Statistical Area, which is al ...
, Maryland. His parents operated a farm, and he developed a strong interest in hunting and fishing. Dochez received a B.A. from
Johns Hopkins University Johns Hopkins University (Johns Hopkins, Hopkins, or JHU) is a private research university in Baltimore, Maryland. Founded in 1876, Johns Hopkins is the oldest research university in the United States and in the western hemisphere. It consi ...
in 1903, and an M.D. in 1907.


Career

After graduation, Dochez worked at the laboratory of pathology at Hopkins investigating the effects of iodine-free diets on animals. After one year, he applied to work at the
Rockefeller Institute for Medical Research The Rockefeller University is a private biomedical research and graduate-only university in New York City, New York. It focuses primarily on the biological and medical sciences and provides doctoral and postdoctoral education. It is classi ...
(now Rockefeller University). He obtained a fellowship position with Eugene Opie. Together they published four papers on enzyme activation. In 1910, Dochez became an assistant resident and
bacteriologist A bacteriologist is a microbiologist, or similarly trained professional, in bacteriology -- a subdivision of microbiology that studies bacteria, typically pathogenic ones. Bacteriologists are interested in studying and learning about bacteria, ...
at Rockefeller Hospital, despite lacking prior background in the field. From this time on, he remained a microbiologist. While he was assistant resident, Dochez contributed to major studies on lobar and bronchial
pneumonia Pneumonia is an inflammatory condition of the lung primarily affecting the small air sacs known as alveoli. Symptoms typically include some combination of productive or dry cough, chest pain, fever, and difficulty breathing. The severi ...
. Dochez developed a biological classification of types of
pneumococci ''Streptococcus pneumoniae'', or pneumococcus, is a Gram-positive, spherical bacteria, alpha-hemolytic (under aerobic conditions) or beta-hemolytic (under anaerobic conditions), aerotolerant anaerobic member of the genus Streptococcus. They are ...
. With Oswald Avery, he discovered the soluble substance that confers type-specificity upon pneumococci. Their work demonstrated that the substance was of capsular origin and present in both blood and urine of infected patients. The two, who often collaborated, also revealed the importance of type-specific antibodies in recovery from pneumococcal pneumonia. This discovery lead to the production of the first effective pneumococcal pneumonia therapy. The therapy, using type-specific anti-pneumococcal horse serum, was used until the development of sulfonamides and penicillin. During World War I, Dochez served as a major in the Medical Corps where he studied respiratory diseases. In 1919, he became an Associate Professor of Medicine at Johns Hopkins Medical School. At Hopkins, he began studying streptococcus and scarlet fever. He continued this work at the College of Physicians and Surgeons of Columbia University, where he became faculty in 1921. Dochez's work was the first to demonstrate that scarlet fever was directly related to streptococcal pharyngitis. He also demonstrated that most strains of streptococci from scarlet fever patients belonged to a single specific type of bacteria. Dochez developed an antiserum capable of treating scarlet fever, but was forced to terminate production, and all further research on scarlet fever, due to patent infringement. Forced to switch fields, Dochez initiated studies on a different type of infection: the common cold. Dochez and collaborators confirmed that the common cold was not caused by bacteria by demonstrating that the infection could be induced by exposure to bacteria-free substances. He concluded that the common cold was likely of viral etiology, but techniques of the time period were not sophisticated enough to prove this conclusively. Dochez was chair of the Department of Bacteriology at the College of Physicians and Surgeons at Columbia University from 1940 to 1949. He retired in 1949 and was honored as the John E. Borne Professor of Medical and Surgical Research Emeritus. Until his death Dochez continued his scientific research, focusing on
carcinogenesis Carcinogenesis, also called oncogenesis or tumorigenesis, is the formation of a cancer, whereby normal cells are transformed into cancer cells. The process is characterized by changes at the cellular, genetic, and epigenetic levels and abno ...
in his later years.


Personal life

Although he never came out of the closet while alive, a modern scholar believes Dochez was gay. His coworker was
Oswald Avery Oswald Theodore Avery Jr. (October 21, 1877 – February 20, 1955) was a Canadian-American physician and medical researcher. The major part of his career was spent at the Rockefeller Hospital in New York City. Avery was one of the first molecula ...
, with whom he shared an apartment for decades. Dochez was a devout Catholic.


Legacy

During his academic career, Dochez received many honors. Starting with his service in WWII, Dochez advised many governmental agencies. He was a member of the Office of Scientific Research and Development and the National Defense Research Committee. He served on the Board for Coordination of Malarial Studies, the Board for Control of Influenza and Other Epidemic Diseases, and the Hoover Commission on the reorganization of the executive branch of the government. He was awarded the United States Medal of Merit in 1948. He also received the Kober Medal of the
Association of American Physicians The Association of American Physicians (AAP) is an honorary medical society founded in 1885 by the Canadian physician Sir William Osler and six other distinguished physicians of his era for "the advancement of scientific and practical medicine." ...
in 1949 and the Medal of the
New York Academy of Medicine The New York Academy of Medicine (the Academy) is a health policy and advocacy organization founded in 1847 by a group of leading New York metropolitan area physicians as a voice for the medical profession in medical practice and public health ...
in 1958. Dochez served as president of the
American Association of Immunologists The American Association of Immunologists (AAI) is an international scientific society dedicated to furthering the study of immunology. AAI provides its members with a variety of platforms in which to exchange ideas and present the latest immunolo ...
, the Association of American Physicians, and the American Clinical and Climatological Association. In 1933, he was elected to the National Academy of Sciences. He received honorary degrees from
New York University New York University (NYU) is a private research university in New York City. Chartered in 1831 by the New York State Legislature, NYU was founded by a group of New Yorkers led by then- Secretary of the Treasury Albert Gallatin. In 1832, th ...
(1925),
Yale University Yale University is a Private university, private research university in New Haven, Connecticut. Established in 1701 as the Collegiate School, it is the List of Colonial Colleges, third-oldest institution of higher education in the United Sta ...
(1926), and Case Western Reserve University (1931). In addition to his prestigious research career, Dochez was known as an excellent mentor who valued educating and engaging with all members of his lab.


References

{{DEFAULTSORT:Dochez, Alphonse. American microbiologists American Roman Catholics 1882 births 1964 deaths 20th-century American biologists American LGBT scientists