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Molecular epidemiology of HIV-1 in Madrid
J M Rojas1, J Dopazo, I Nájera
1Centro de Biología Celular y Retrovirus, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain.
Virus Research
|March 1, 1994
Abstract:
Thirteen HIV-1 isolates from patients of different risk groups in Madrid (Spain) have been analyzed at the genetic level. Two distinct lineages of subtype B have been detected among the HIV-1 circulating in this area: one was related to SF-2/RF strains, whereas the other consists of a more heterogeneous group related to reference strain III-B. Variants of each lineage appeared to circulate preferentially within a risk group: III-B among intravenous drug users, and RF/SF-2 among male homosexuals.