LA JOLLA, CALIF.—Donald Mosier and Darcy Wilson credit their latest success to what they call “interactive science,” which occurs when experienced researchers with fertile ‘minds get together and new concepts and approaches arise spontaneously. It even occurs, they add, when ideas are exchanged by scientists who do not agree. In fact, as the result of a serendipitous argument, Wilson and Mosier recently made the front page of the New York Times and dozens of other newspapers. What caused journalists to resonate was their report in Nature (Sept. 15, 1988, page 256) that they had trans- planted a human immune system into a rare strain of immune-deficient mice simply by injecting white blood cells into the mice.

That Wilson and Mosier, both of the Medical Biology Institute, La Jolla, Calif., paired for a little project that became a big success is an ideal example of how well interactive science can work,...

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