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Croup — USMLE Step 3 MCQ

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HardPediatrics (well-child, chronic management)CroupUSMLE Step 3

A healthy 17-year-old received one HPV vaccine dose at age 14 years and no subsequent doses. There is no immunocompromising condition. Which catch-up plan is appropriate now?

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Correct answer: A — Give one HPV vaccine dose now to complete the two-dose series

The best answer is “Give one HPV vaccine dose now to complete the two-dose series”. A person who starts HPV vaccination before the 15th birthday and is not immunocompromised uses a two-dose series, with doses separated by at least 5 months. Vaccine series are not restarted when intervals are prolonged, so one catch-up dose now completes this series.

Reference: CDC Child and Adolescent Immunization Schedule: https://www.cdc.gov/vaccines/hcp/imz-schedules/child-adolescent-age.html