From 1987 to 2010, HIV-positive applicants were inadmissible to the United States. The Obama administration removed HIV from the list of communicable diseases of public health significance effective January 4, 2010.
What changed
HIV is no longer screened at the I-693 examination, no longer renders an applicant inadmissible, and is no longer subject to USCIS reporting requirements as a Class A condition.
What hasn’t changed
Other communicable diseases (active TB, syphilis, gonorrhea, leprosy) are still screened and can still affect admissibility.
For consular processing
The DS-2054 medical exam used at US Embassies/Consulates abroad has followed the same rule since 2010.