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About 1 in 25 Americans of European descent, 1 in 46 Hispanics, 1 in 60 to 65 African Americans, and

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About 1 in 25 Americans of European descent, 1 in 46 Hispanics, 1 in 60 to 65 African Americans, and 1 in 150 Asian Americans are carriers for cystic fibrosis. A crowd such as this may contain a carrier.
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