Polio Vaccine Requirement for Immigration

The inactivated polio vaccine (IPV) is required for immigration applicants who do not have documentation of a complete polio vaccination series. Polio is a serious viral disease that can cause paralysis and death. While polio has been eradicated in most of the world, it remains endemic in a small number of countries. USCIS follows ACIP recommendations for polio vaccination, which apply to all immigration applicants regardless of country of origin.

The Standard IPV Series

The standard IPV series for children consists of four doses: at ages 2 months, 4 months, 6-18 months, and 4-6 years. For immigration purposes, applicants who have not completed this series will need to receive the missing doses.

Adults who were never vaccinated against polio should receive a three-dose series of IPV. Adults who received a partial series should complete the remaining doses. Adults who completed a primary series as children generally do not need a booster unless they are at increased risk.

Additional Requirements for Applicants From Endemic Countries

Applicants from countries where polio remains endemic or where outbreaks have occurred may face additional scrutiny regarding polio vaccination. The World Health Organization (WHO) has issued travel recommendations requiring proof of polio vaccination for travelers from certain countries. If you are from a country with ongoing polio transmission, our civil surgeon will advise you on any additional requirements.

Oral Polio Vaccine vs. Inactivated Polio Vaccine

The oral polio vaccine (OPV) was widely used in many countries for decades and is still used in some parts of the world. For immigration purposes, documentation of OPV vaccination is generally accepted as evidence of prior polio vaccination. However, the United States uses only IPV (not OPV) for any doses administered in this country. If you received OPV abroad, bring your records to your appointment.

Adult Booster Doses

Most adults who completed a childhood polio vaccination series do not need a booster for immigration purposes. However, adults who are traveling to or from countries with ongoing polio transmission, or who are at increased risk for other reasons, may be recommended to receive a one-time IPV booster. Your civil surgeon will assess your individual situation.