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| Biography: Albert Bruce Sabin |
The Polish-American physician and virologist Albert Bruce Sabin (1906-1993) developed the first effective and widely used live virus polio vaccine.
Born in Poland, Sabin emigrated to the United States with his parents in 1921 in order to avoid persecutions directed against Jews. After attending New York University as a pre-dental student he switched to medical school and to an interest in microbiology. Upon receiving his medical degree in 1931, Sabin immediately began research on the nature and cause of polio, an acute viral infection that could result in death or paralysis. This disease had reached epidemic proportions affecting people around the world. During his internship at Bellevue Hospital in New York City, Sabin successfully isolated the B virus from a colleague who had died after a bite from a monkey. Sabin was soon able to prove the B virus's relation to the herpes simplex virus, the cause of herpes in humans.
Sabin joined the staff of the Rockefeller Institute in New York City in 1935 and four years later left for a post at the Children's Hospital Research Foundation in Cincinnati, Ohio. It was there that he proved that polio viruses not only grew in nervous tissue, as was generally assumed, but that they lived in the small intestines. By introducing the idea of enteroviruses - viruses that lived in the gut - Sabin established that poliomyelitis was essentially an infection of the alimentary tract. This discovery indicated that poliomyelitis might be vulnerable to a vaccine taken orally.
Sabin's work on a poliomyelitis vaccine was interrupted by World War II. In 1941 he joined the U.S. Army Epidemiological Board's Virus Committee and accepted assignments in Europe, Africa, the Middle East, and the Pacific. During this phase of his career Sabin developed vaccines for encephalitis (sleeping sickness), sand-fly fever, and dengue fever. At the war's end Sabin returned to Cincinnati and to his research on the polio virus.
Convinced that the polio virus in nature lived primarily in the intestines, Sabin resolved to make the human gut a hostile environment for it. This he intended to accomplish by isolating a mutant form of the polio virus that was incapable of producing the disease. The avirulent virus would then be propagated and introduced into the intestines, where it would reproduce rapidly, displacing the lethal virulent forms of the polio virus and protecting the human host from the disease. Sabin's goal from the outset was to find a live and safe variant polio virus that could be administered orally to combat poliomyelitis.
After an intensive investigation during which he discovered a number of new enteroviruses, Sabin managed to isolate the viruses he sought. Sabin and his research associates first ingested the live avirulent viruses themselves before they experimented on other human subjects. For two years (1955-1957) he gave the vaccine to hundreds of prison inmates with no harmful effects. At this point Sabin was ready for large-scale tests, but he could not carry them out in the United States. A rival polio vaccine developed by Dr. Jonas Salk in 1954 was then being tested for its efficacy in preventing the disease among American school children.
Whereas Sabin thought an attenuated live virus diluted and weakened would be effective, Salk was determined to create a vaccine using a killed form of the virus.
Some foreign virologists, especially those from the U.S.S.R., were convinced of the superiority of the Sabin vaccine, and hence it was first subjected to widespread tests outside the United States from 1957 to 1959. Millions of Russians, and millions more living in Latvia, Estonia, Czechoslovakia, Poland, Hungary, and East Germany, gained protection from poliomyelitis with Sabin's vaccine. A much smaller group of persons living in Sweden, England, Singapore, and the United States received Sabin's vaccine by the end of 1959.
In the meantime the Salk vaccine experienced some problems that made the American medical community more receptive to the solution proposed by Sabin. Salk's vaccine, which utilized killed virulent polioviruses, was accidently contaminated with some live virulent polioviruses which subsequently brought death or severe illness to several hundred school children. In addition, the Salk vaccine was somewhat difficult to administer (it was necessary to inject it into the body) and it was effective for a relatively short time (less than a year).
Sabin took advantage of this situation by vigorously promoting his vaccine. It was, he said, free of virulent viruses, easily administered orally, and effective over a long period of time. The battle that ensued between the supporters of the Salk and Sabin vaccines was finally won by the Sabin forces and hence it was a live virus vaccine that was used in the United States and the rest of the world to eradicate poliomyelitis. The battle between Salk and Sabin went on for years. Salk denounced Sabin's vaccine in 1973 as being unsafe and tried to persuade the public to use his vaccine again. But he was ignored by many, and by 1993 health organizations reported the near-extinction of the polio disease in the Western Hemisphere.
The success of his polio vaccine brought Sabin many honors at home and abroad. Always a tireless researcher, Sabin did not rest upon his laurels but moved on to a new field of study - the viral origins of human cancer. After more than a decade of work he was forced in 1977 to conclude that cancers were not caused by viruses as he had first assumed. During this time he served as research professor at the University of South Carolina until taking an emeritus status in 1982. In 1980 he traveled to Brazil to deal with a new outbreak of polio, and retired from medicine in 1986. Until his death on March 3, 1993, of heart failure, Sabin continued to add wood to the fire, speaking out against many ideals, including his doubts that a vaccine should be developed to fight the human immunodeficiency virus, or HIV, which causes AIDS.
Further Reading
Sabin's life and scientific achievements are treated in chapter 5 of Theodore Berland, The Scientific Life (1962) and in chapter 14 of Roger Rapoport, The Superdoctors (1975). The Salk-Sabin controversy is covered in Richard Carter, Breakthrough: The Saga of Jonas Salk (1966). The Miracle Finders by Donald Robinson and The Health Century by Edward Shorter are encouraged reading for learning of many other contributors to the world of virology.
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| Albert Sabin | |
|---|---|
| Born | August 26, 1906 Białystok, Russia |
| Died | March 3, 1993 (aged 86) Washington, D.C |
| Citizenship | United States |
| Nationality | Poland |
| Fields | immunology |
| Alma mater | New York University |
| Known for | oral polio vaccine |
| Notable awards | see article |
Albert Bruce Sabin (August 26, 1906 – March 3, 1993) was an American medical researcher best known for having developed an oral polio vaccine.
Contents |
Sabin was born in Białystok, Russia (now Poland), to Jewish parents, Jacob and Tillie Saperstein, in 1921 he immigrated with his family to America. In 1930 he became a naturalized citizen of the United States and changed his name to Sabin.
Sabin received a medical degree from New York University in 1931. He trained in internal medicine, pathology and surgery at Bellevue Hospital in New York City from 1931-1933. In 1934 he conducted research at The Lister Institute for Preventive Medicine in England, then joined the Rockefeller Institute for Medical Research (now Rockefeller University). During this time he developed an intense interest in research, especially in the area of infectious diseases. In 1939 he moved to Cincinnati Children's Hospital in Cincinnati, Ohio. During World War II he was a lieutenant colonel in the U.S. Army Medical Corps and helped develop vaccines against dengue fever and Japanese encephalitis. Maintaining his association with Children's Hospital, by 1946 he had also become the head of Pediatric Research at the University of Cincinnati. In 1969-1972 he lived and worked in Israel as the President of Weizmann Institute of Science in Rehovot. After his return to the United States he worked (1974-1982) as a Research Professor at the University of South Carolina. He later moved to Washington, D.C. area where he was a Resident Scholar at the John E. Fogarty International Center on NIH campus in Bethesda, MD.
With the menace of polio growing, Sabin and other researchers, most notably Jonas Salk in Pittsburgh and Hilary Koprowski and Herald Cox in New York and Philadelphia, sought a vaccine to prevent or mitigate the illness. In 1955, Salk's "killed" vaccine was released for use. It was effective in preventing most of the complications of polio, but did not prevent the initial, intestinal infection. In addition, those who received the Salk vaccine could pass on the polio virus. Sabin first tested his live attenuated oral vaccine at the SabinChillicothe Ohio Reformatory in late 1954. From 1956-1960 he worked with Russian colleagues to perfect the oral vaccine and prove its extraordinary effectiveness and safety. The Sabin vaccine worked in the intestines to block the poliovirus from entering the bloodstream. It was in the intestines, Sabin discovered, the poliovirus multiplied and attacked. Thus, the oral vaccine broke the chain of transmission of the virus and made possible the world wide eradication of polio.
Between 1955-1960, the oral vaccine was tested on at least 100 million people in the USSR, parts of Eastern Europe, Singapore, Mexico and the Netherlands. The first industrial production and mass use of Oral Poliovirus Vaccine (OPV) from Sabin strains was organized by Soviet scientist Mikhail Chumakov [1][2]. This provided the critical impetus for allowing large scale clinical trial of OPV in the United States in April 1960 on 180,000 Cincinnati school children. The mass immunization techniques that Sabin pioneered with his associates effectively eradicated polio in Cincinnati. Against considerable opposition from The March of Dimes Foundation, which supported the relatively effective killed vaccine, Sabin prevailed on the Public Health Service to license his three strains of vaccine. While the PHS stalled, the USSR sent millions of doses of the oral vaccine to places with polio epidemics, such as Japan, and reaped the humanitarian benefit. Indeed it was not clear to many that the vaccine was an American one, financed by US dollars, but not available to ordinary Americans.
Sabin vehemently opposed the use of the Salk inactivated vaccine and attempted to block its use.
In 1983, Sabin developed calcification of the cervical spine, which caused paralysis and intense pain. [3] [4] According to Keith Olbermann, Sabin revealed in a television interview that the experience had made him decide to spend the rest of his life working on alleviating pain.[5] This condition was successfully treated by surgery conducted at Johns Hopkins Hospital in 1992 when Sabin was 86.
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