title: Prevalence of different HIV-1 subtypes in an urban clinic in Madrid.
abstract: The introduction of non-B HIV-1 variants into Western Europe and North America is of great concern since diagnostic tools and drugs are mainly optimised for targeting HIV-1 subtype B viruses. Madrid is an endemic area for HIV, and either the final destination or transient location for many immigrants from HIV-1 non-B endemic areas (mainly from Africa and South America). From a total of 902 HIV seropositive individuals examined since June 1999, only 27 (3%) were found to be infected with non-B HIV variants. However, up to 71.4% of African immigrants carried non-B viruses. Therefore, HIV subtyping should be requested from all HIV infected African immigrants before considering viral load testing and recommending antiretroviral therapy.
authors.affiliation: Service of Infectious Diseases, Instituto de Salud Carlos III, Madrid, Spain.
authors.forename: J C
authors.initials: JC
authors.lastname: Martín
authors.forename: A
authors.initials: A
authors.lastname: Holguín
authors.forename: V
authors.initials: V
authors.lastname: Soriano
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology*; D000328:Adult; D000349:Africa / Q000208:ethnology; D005260:Female; D015497:HIV-1 / Q000145:classification*; D006801:Humans; D008297:Male; D015995:Prevalence; D013030:Spain / Q000453:epidemiology; D014504:Urban Health / Q000706:statistics & numerical data