Progression to AIDS in the majority of asymptomatic HIV-infected people

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Abstract
Sixty-eight asymptomatic HIV-seropositive people with a CD4 lymphocyte count above 400/mm3 at the first examination were followed up every year over a 3-year period, by monitoring the biological markers of AIDS (CD4 lymphocyte decrease, loss of anti-p24 or anti-p17 antibodies, positive p24 antigenemia, increase of erythrocyte sedimentation rate, and of serum levels of immunoglobulin G. immunoglobulin A, neopterin and beta 2-microglobulin). The percentages of subjects positive for at least one marker at the first, second, third and fourth examinations were 66, 88, 94 and 97%, respectively. The increase in the number of markers with time was significant (chi-square test; P less than 0.001). This increase suggests a progression to AIDS in the majority of asymptomatic seropositive subjects, even those without a decreased CD4 lymphocyte count.

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