TY - JOUR T1 - Human immunodeficiency virus type 1 Brazilian subtype B variant showed an increasing avidity of the anti-V3 antibodies over time compared to the subtype B US/European strain in São Paulo, Brazil JO - Memórias do Instituto Oswaldo Cruz A1 - Casseb, Jorge A1 - Montanheiro, Patricia A1 - Komninakis, Shirley A1 - Brito, Adriana A1 - Duarte, Alberto JS SN - 0074-0276 UL - 10.1590/S0074-02762004000100012 VL - 99 Y1 - 2004 PB - Brasil ER -