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[Detection of acute HIV infection by serum HIV-1 RNA quantification].

To assess the merit of serum HIV-1 RNA quantification in detecting acute HIV infection, we reviewed the results of HIV-1 RNA assay and antibody tests in all patients who received those tests at our hospital from August 1999 to December 2004. Of 3530 such patients, five were sero-negative and PCR-positive with more than 105 copies/ml at initial examination. Four of them had HAART and followed a favorable course; they were later confirmed to be sero-positive by Western blotting. The other one, positive only by CLEIA, was lost to follow-up. This reconfirms the importance of using PCR in the initial assessment of HIV infection in high-risk patients.