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  • Title: Boosted p24 antigen assay for early diagnosis of perinatal HIV infection.
    Author: Wittawatmongkol O, Vanprapar N, Chearskul P, Phongsamart W, Prasitsuebsai W, Sutthent R, Chokephaibulkit K.
    Journal: J Med Assoc Thai; 2010 Feb; 93(2):187-90. PubMed ID: 20301999.
    Abstract:
    OBJECTIVE: The authors evaluated the accuracy of in-house boosted-p24 antigen assay for diagnosis of perinatal HIV infection. MATERIAL AND METHOD: The author has retrospectively reviewed the medical records of infants born to HIV-positive mothers. The infants were tested for boosted-p24 antigen assay at the age of 1-2 months and 4-6 months. HIV infection was defined as positive anti-HIV at the age 18 months or older, or had positive HIV-PCR with clinical signs and symptoms compatible with HIV/AIDS. RESULTS: There were 168 infants included in this review and six were HIV-infected. The boosted-p24 antigen assay had the sensitivity, specificity, positive predictive value, and negative predictive value of 33.33%, 98.27%, 50%, and 95.8%, respectively at 1-2 month-old, and 100%, 98.27%, 71.43%, and 100%, respectively at 4-6 month-old. CONCLUSION: Boosted-p24 antigen assay could be a cheaper alternative test to help diagnosis of perinatal HIV infection in infants. The test was very accurate when performed at 4-6 months.
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