Although the Immigration Medical Examination is not required for those who are non-immigrant- visa-applicants and even those who are non-immigrants arriving at a port of entry, but it could transpire that the Consular officer overseas or the inspector at the port of admission may instruct you to go through the Immigration exam if there is some doubt or some reasons to believe that the applicant could be rendered inadmissible on medical grounds.
REFUGEES:
Once refugees apply for adjustment of status they can become eligible to apply for what is called Adjustment of Status one year after their initial admission for refugee status. Once they apply for this position they are not required to go in for the Immigration Medical again, unless a condition came to light in which the refugee became inadmissible.
Even then refugees who are not required to take up the Medical Examination must still conform to vaccination rules and should go in for the necessary vaccinations. A sign-off for this has to be submitted to establish the Adjustment of Status application.
Refugee applicants can contact their local health coordinator or resettlement agency to be able to know whether it is possible for the refugee to get the vaccination sign-off done by the state or local health agency.
It is advisable for the refugees to contact their state refugee health coordinator or local refugee resettlement agency to find out whether it is possible for the refugee to get the vaccination sign-off done by a state or local health department.