What Is a Catch-Up Vaccine Schedule for Immigration?
Quick Answer
A catch-up vaccine schedule is a plan for completing required vaccines that were not received on the standard childhood schedule. For immigration, the civil surgeon reviews your vaccination history and determines which vaccines you still need, following ACIP catch-up guidelines.
What Is a Catch-Up Vaccine Schedule?
A catch-up vaccine schedule is a plan for administering vaccines that were not received at the recommended ages or intervals. ACIP publishes annual catch-up immunization schedules for children, adolescents, and adults. For immigration purposes, the civil surgeon uses these catch-up schedules to determine which vaccines you still need if you did not receive them on the standard schedule — whether due to living in a country with a different vaccine program, lack of access to vaccines, or other reasons.
How the Civil Surgeon Determines What You Need
At your immigration medical exam, the civil surgeon will review your vaccination records and compare them to the current ACIP immunization schedule for your age group. Any vaccines that are missing or incomplete will be identified. The civil surgeon will then determine the appropriate catch-up plan, including which vaccines to administer at your appointment and which require follow-up doses. Bring all available vaccination records — including foreign records — to your appointment to minimize the number of vaccines you need.
Multi-Dose Series and Timing
Some vaccines require multiple doses given at specific intervals. For example, the hepatitis B series requires 3 doses over 6 months, and the HPV series requires 2–3 doses over several months. When a catch-up plan involves a multi-dose series, you will need multiple appointments to complete the series. The minimum intervals between doses must be observed — giving doses too close together may not provide adequate immunity and the doses may not be counted.
Effect on Form I-693 Completion Timeline
If you need catch-up vaccines that require multiple doses, Form I-693 cannot be finalized until all required doses have been administered. This can extend your immigration medical exam timeline by weeks or months, depending on the vaccines needed. For example, if you need a hepatitis B series, the full series takes approximately 6 months to complete. Plan your immigration timeline accordingly and schedule your exam as early as possible to allow time for catch-up vaccination.
Vaccines That Can Be Given Simultaneously
Many vaccines can be administered at the same appointment, which helps reduce the number of visits needed. ACIP guidelines allow most vaccines to be given simultaneously without reducing their effectiveness or increasing side effects. The civil surgeon will administer as many required vaccines as possible at each appointment to minimize the total number of visits needed to complete your catch-up schedule.
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