{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,14]],"date-time":"2026-07-14T06:05:38Z","timestamp":1784009138977,"version":"3.55.0"},"reference-count":31,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,7,14]],"date-time":"2026-07-14T00:00:00Z","timestamp":1783987200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Public Health"],"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Cervical cancer, mainly caused by high-risk HPV infection, is the fourth most common cancer among women worldwide. From the approval of the bivalent HPV vaccine in 2016 to its inclusion in the national immunization program in 2025, China\u2019s HPV vaccine policy has completed a full cycle, but long-term public opinion tracking research remains insufficient.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This study collected and cleaned 15,391 related posts from Zhihu, Weibo, Baidu Tieba, and Xiaohongshu, and used the LDA thematic model and sentiment dictionary analysis to measure vaccine hesitancy using an A2P ratio.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The results show that public discussion has evolved from infection risk awareness to comprehensive prevention, and then to post-vaccination management; The A2P ratio dropped from 0.92 to 0.51, and the proportion of positive posts rose from 21.3% to 38.5%. After the Changchun Changsheng incident in 2018, positive sentiment dropped to 45.5%, but later rebounded to 58.1% with policy expansion.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The \u201cPolicy\/Event \u2192 Emotional \u2192 Vaccination Behavior\u201d analytical framework provides empirical support for evidence-based vaccine communication strategies. In the future, multimodal data and individual tracking surveys should be integrated to deepen attitude-behavior pathway research.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fpubh.2026.1889894","type":"journal-article","created":{"date-parts":[[2026,7,14]],"date-time":"2026-07-14T05:38:07Z","timestamp":1784007487000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Policy events, emotional fluctuations, and vaccination behavior: a longitudinal analysis of public opinion on HPV vaccines in China"],"prefix":"10.3389","volume":"14","author":[{"given":"Liang","family":"Li","sequence":"first","affiliation":[{"name":"School of Business Administration, Guangdong University of Finance and Economics","place":["Guangzhou, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaoya","family":"Xu","sequence":"additional","affiliation":[{"name":"School of Business Administration, Guangdong University of Finance and Economics","place":["Guangzhou, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pengke","family":"Jiang","sequence":"additional","affiliation":[{"name":"School of Big Data and Artificial Intelligence, Guangdong University of Finance and Economics","place":["Guangzhou, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fu Lee","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Science and Technology, Hong Kong Metropolitan University","place":["Hong Kong, Hong Kong SAR, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,7,14]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","first-page":"457","DOI":"10.1016\/j.currproblcancer.2018.06.003","article-title":"Cervical Cancer worldwide","volume":"42","author":"Vu","year":"2018","journal-title":"Curr Probl Cancer"},{"key":"ref2","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1016\/j.vaccine.2022.11.056","article-title":"\"I won't be a guinea pig\": rethinking public health communication and vaccine hesitancy in the context of COVID-19","volume":"41","author":"Driedger","year":"2022","journal-title":"Vaccine"},{"key":"ref3","doi-asserted-by":"publisher","first-page":"143","DOI":"10.13366\/j.dik.2022.06.143","article-title":"A review of research progress on the application of LDA topic model in the field of library and information science","volume":"39","author":"Zhang","year":"2022","journal-title":"Knowled. 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