Nearly 15% of women in the United States had rubella as children and so acquired immunity.

Name: Nearly 15% of women in the United States had rubella as children and so acquired immunity.
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Quizplus · Accepted Answer

The actual percentage of women in the United States who had rubella as children and thus acquired immunity is not specifically known to be 15%. Rubella vaccination programs have significantly reduced the incidence of the disease, making such a specific percentage unlikely without current, precise data.

Nearly 15% of Women in the United States Had Rubella