Women older than age 40 are not likely to receive a substantial benefit from vaccination against the human papillomavirus, according to a study published in the Journal of the National Cancer Institute, the New York Times reports. Although HPV infection is more common in older women, the study found that the rate of newly detected cases declined with age, from 35% of cases in women ages 18 through 25 to 13.5% of cases in women age 42 and older...
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