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. 2021 Aug 5;18:E77. doi: 10.5888/pcd18.210035

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Preventing Chronic Disease is a publication of the U.S. Government. This publication is in the public domain and is therefore without copyright. All text from this work may be reprinted freely. Use of these materials should be properly cited.

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The timeline starts in 1983 with Immunization Law No. 25, which states that no student or preschool child may be admitted or enrolled in a school or day care center if he or she is not properly immunized. The figure shows that, along the 38-year period and prior to the HPV school-entry milestone, policy efforts to increase HPV vaccine accessibility were made, and it displays the response to deter this policy and challenges endured prior to its implementation. — Timeline of events from adoption to implementation of the human papillomavirus (HPV) vaccine school-entry requirement in Puerto Rico, 1983–2020. Abbreviations: ACIP, Advisory Committee on Immunization Practices; DOH, Puerto Rico Department of Health; FDA, Federal Drug Administration; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2; VOCES, Coalición de Vacunación de Puerto Rico.