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Find number abc

If 101a2 + 6cbcc = 7c7a1 find number abc. Multiple solutions may exist.

Correct answers: 0

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Yellow fever vaccine

In 1932, a vaccine was announced for yellow fever for human immunization. This first public announcement was made at a meeting of the American Societies for Experimental Biology at Philadelphia, Pennsylvania. It was developed by Drs. Wilbur A. Sawyer, Wray D.M. Lloyd, and Stuart F. Kitchen, who were sponsored by the Rockefeller Foundation.

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