February 25, 2026- A new study by researchers at the American Cancer Society (ACS) shows cervical cancer incidence rates in women ages 20-31 declined by 27% in the United States between 2016-2021, when the human papillomavirus (HPV) vaccine was available, compared to 2000-2005, before the implementation of the vaccine. However, there were substantial differences in progress across individual states, ranging from more than a 50% decrease in cervical cancer incidence to no progress at all. The study is to be published in the Journal of the National Cancer Institute (JNCI).