Immigration physicals are required for anyone who would like to gain entrance and citizenship into the United States. One of the main functions of a Civil Surgeon is to verify that you are current on your CDC recommended vaccinations.
A medical exam is required for all immigrant visas, some non-immigrant visas, for refugees, and adjustment of status applicants. Immigration physicals are similar to routine physicals. The purpose of an immigration physical is to ensure that the patient has no health concerns that would require attention before immigrating.