Absence of HTLV-III/LAV antibodies in ex-residents from Angola and Mozambique returning to Portugal before 1979.
D000810:Angola / Q000208:ethnology; D000914:Antibodies, Viral / Q000032:analysis*; D017977:Deltaretrovirus / Q000276:immunology*; D005260:Female; D006801:Humans; D008297:Male; D009073:Mozambique / Q000208:ethnology; D011174:Portugal
D000914:Antibodies, Viral