title: Antigen detection in primary HIV infection.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000097:blood; D000956:Antigens, Viral / Q000032:analysis*; D001708:Biopterins / Q000031:analogs & derivatives / Q000097:blood; D006678:HIV / Q000276:immunology*; D015488:HIV Antigens; D006801:Humans; D019798:Neopterin
chemical_list: D000956:Antigens, Viral; D015488:HIV Antigens; D001708:Biopterins; D019798:Neopterin