Human immunodeficiency virus (HIV-1): infectivity transmission, risk behaviours and host susceptibility.
Department of Epidemiology and Medical Informatics, National Research Council, Milan, Italy.
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Nicolosi
D016516:CD4-CD8 Ratio; D015496:CD4-Positive T-Lymphocytes / Q000276:immunology; D015658:HIV Infections / Q000276:immunology / Q000635:transmission*; D015497:HIV-1 / Q000472:pathogenicity*; D006801:Humans; D007958:Leukocyte Count; D012307:Risk Factors; D014774:Virulence