The World Health Organization has recently updated their dosing schedule recommendations for the human papillomavirus (HPV) vaccine to include a single-dose schedule. We review the biologic plausibility of a single dose, the evidence from clinical trials, post-licensure observational studies, and mathematical modeling for a single-dose schedule. We also discuss the implications of countries switching to a single-dose program from a two or three-dose schedule. Finally, we review the countries that have currently switched to or introduced the vaccine with a single-dose schedule.
Keywords: Dosing Schedule; HPV Vaccine; Immunisation Programmes.
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