Abstract
To determine whether the biological variability of HIV-1 has any clinical significance, the highly variable cytopathogenicity of 153 HIV-1 strains, isolated from 119 hemophiliacs, was related to the number of CD4+ lymphocytes present in the patient's blood at the time of virus isolation. It was shown that the cytopathogenicity of the HIV-1 isolates was inversely correlated with the number of CD4+ lymphocytes. The highest CD4+ cell numbers were observed in 34 latently infected patients characterized by HIV seropositivity, failure of virus isolation, and detection of viral DNA by the polymerase chain reaction. Cytopathogenicity of the HIV-1 isolates was a reliable prognostic marker and correlated well with other lesssensitive prognostic parameters, including the detection of infectious virus and p24 antigen in the plasma, and the decline of p24 antibody in the serum. The results suggest that the viral isolates — if not subjected to extensive passage — represent in vivo variants selected from a heterogeneous viral population according to the particular immunological conditions of the host.
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Schneweis, K.E., Kleim, JP., Bailly, E. et al. Graded cytopathogenicity of the human immunodeficiency virus (HIV) in the course of HIV infection. Med Microbiol Immunol 179, 193–203 (1990). https://doi.org/10.1007/BF00195250
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DOI: https://doi.org/10.1007/BF00195250