Word: bioreactors
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...process works: scientists biopsy stem or satellite muscle cells from a livestock animal, such as a chicken, cow or pig. The cells are then placed in a nutrient-rich medium where they divide and multiply, and are then attached to a scaffolding structure and put in a bioreactor to grow. In order to achieve the texture of natural muscle, the cells must be physically stretched and flexed, or exercised, regularly. After several weeks, voila, you have a thin layer of muscle tissue that can be harvested and processed into ground beef, chicken or pork, depending on the origin...
...which it plans to apply to seasonal and pandemic flu vaccines. The Department of Health and Human Services last spring awarded a $97 million contract to Sanofi-Aventis, a Paris-based drug company, to develop avian-flu vaccines using human cells. The company is preparing a 20,000-liter bioreactor tank in the U.S. to brew test cultures. Jaap Goudsmit, chief scientific officer for Netherlands-based Crucell, which supplies cell-culture technology to Sanofi-Aventis, expects to test the first cell-based avian-flu vaccine as early as next spring...
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