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Weller, Thomas

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Thomas Weller

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Thomas Weller
(June 15, 1915 - August 28, 2008)
Born in the United States
Year of Discovery: 1949
Their Revolutionary Technique Changed the Course of Virology Forever!

In 1949, Thomas Weller, with John Enders and Frederick Robbins developed tissue culture techniques that revolutionized virology. Their ability to grow an endless supply of certain viruses in tests tubes made it possible for vaccines to be created for many viral diseases. Their marked success was with the poliovirus. They were awarded the Nobel Prize for their research on it in 1954.

During the first half of the 20th century, no illness inspired more dread and panic than did polio. It came in epidemics and mainly infected children in the summer, creating great scares for parents. Polio is a highly infectious disease caused by the poliomyelitis virus. It invades the nervous system, and can cause total paralysis in only a few hours. The virus enters the body through the mouth and multiplies in the intestine. Initial symptoms are fever, fatigue, headache, vomiting, stiffness in the neck and pain in the limbs. One in 200 infections leads to irreversible paralysis (usually in the legs). Among those paralyzed, 5% to 10% die when their breathing muscles become immobilized.

Before 1949 scientists had trouble growing any virus in tests tubes. Instead they used animals, which made investigating a virus or developing a vaccine very difficult.

Weller was a precocious medical student who became interested in research. Seeking to learn new techniques, in 1939 he began a tutorial research project in Dr. John Enders' lab, where he was introduced to the field of virus research and tissue-culture techniques. He and his classmate Larry Kingsland, along with Dr. Alto Feller and Enders performed an experiment that was able to grow a virus in a test tube for the unheard of time of nine weeks. Its revolutionary impact was interrupted by World War II. In 1947, Weller rejoined Dr. Enders as he was creating a new department, the Research Division of Infectious Diseases at the Children's Medical Centre in Boston. Soon after they began their research Weller modeled an experiment after some of his previous experiments, seeking to grow viruses in test tubes over time as they had done in 1940. Success in that experiment was the beginning of the lab's long line of successful experiments that laid the groundwork for growing and experimenting with viruses in test tubes. These advances were as revolutionary as the advances in the 1880s that led to microbiology, allowing endless experiments on bacteria. Their techniques completed changed virology, making the identification of many new viruses possible as well as lots of vaccines.

Using their tissue culture methods of growing the virus, Jonas Salk developed the inactivated (killed) polio vaccine in 1953. Also using their techniques, Albert Sabin created the attenuated polio vaccine that was used throughout most of the world. Mass immunization began to slow polio's spread in the 1950's, and in 1979 the last case of wild polio occurred in the United States. It has been over 20 years since the Global Polio Eradication Initiative was launched and the number of cases has fallen by over 99% worldwide. In 2008, only four countries, Afghanistan, India, Nigeria and Pakistan, remain polio-endemic.

Weller left Children's Hospital in 1954 and spent his subsequent years as chairman of Harvard's Department of Tropical Public Health, inspiring another generation to save lives, including Bill Foege. His other research included studying the virus that causes chickenpox and showed that it was the same virus that causes the skin disease known as shingles (herpes zoster). He also isolated cytomegalovirus, and in 1962, he isolated the virus that causes rubella (German measles).


Introduction by Billy Woodward


Table of Contents

Links to More Information About the Scientist
Key Insight
Key Experiment or Research
Key Contributors
Quotes by the Scientist
Quotes About the Scientist
Fun Trivia About The Science
The Science Behind the Discovery
Personal Information
Science Discovery Timeline
Recommended Books About the Science
Books by the Scientist
Books About the Scientist
Major Academic Papers
Curriculum Vitae
Links to Science and Related Information on the Subject


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Key Insight

Key Experiments or Research


Key Contributors

The Team
Explore other scientists who furthered this lifesaving advance.
Lifesavers: Polio Vaccine
John Enders
Revolutionized virology - did pivotal early polio vaccine work and developed the measles vaccine.
Frederick Robbins
Worked with Enders on developing tissue cell culture techniques for viruses.
Jonas Salk
Developed the first vaccine to fight against the epidemic killer polio virus, using tissue cell culture techniques pioneered by Enders.
Thomas Francis Jr
Influenza and polio vaccine - taught Jonas Salk critical vaccine development technique.
Albert Sabin
Developed the "live" polio vaccine, given on a sugar cube, used throughout the world.

Quotes by the Scientist

Quotes About the Scientist


Fun Trivia About the Science

The Science Behind the Discovery

Personal Information

Scientific Discovery Timeline

Recommended Books About the Science

Books by the Scientist

Books About the Scientist



Major Academic Papers Written by the Scientist

Curriculum Vitae

Links to Information on the Science