title: Diagnosis of perinatal human immunodeficiency virus infection by polymerase chain reaction and p24 antigen detection after immune complex dissociation in an urban community hospital.
abstract: Results of polymerase chain reaction (PCR) and p24 antigen detection after immune complex dissociation (p24-ICD) were compared with antibody results after 18 months of age for human immunodeficiency virus (HIV) diagnosis in 345 prospectively followed, perinatally exposed infants. Of 59 infected and 286 uninfected infants tested at 1-6 months of age, sensitivity and specificity were, respectively, 100% and > 97% for PCR and 90% and > 97% for p24-ICD. Testing was done on > or = 2 occasions in the first 6 months of life in 43 infected infants; 77% had > or = 2 positive results with the same test. Of these infants, 68% had 2 positive p24-ICD tests. In uninfected infants, 96% had only negative tests; none had > 1 positive. By 6 months, all uninfected infants with > or = 2 PCR results could have been diagnosed. HIV status can be determined by PCR by age 6 months in most HIV-exposed infants. p24-ICD should not be used alone, because of its lower sensitivity, but may be useful in areas without advanced laboratory support.
authors.affiliation: Department of Pediatrics, Emory University School of Medicine, and Centers for Disease Control and Prevention, Atlanta, Georgia 30335, USA.
authors.forename: S
authors.initials: S
authors.lastname: Nesheim
authors.forename: F
authors.initials: F
authors.lastname: Lee
authors.forename: M L
authors.initials: ML
authors.lastname: Kalish
authors.forename: C Y
authors.initials: CY
authors.lastname: Ou
authors.forename: M
authors.initials: M
authors.lastname: Sawyer
authors.forename: S
authors.initials: S
authors.lastname: Clark
authors.forename: L
authors.initials: L
authors.lastname: Meadows
authors.forename: V
authors.initials: V
authors.lastname: Grimes
authors.forename: R J
authors.initials: RJ
authors.lastname: Simonds
authors.forename: A
authors.initials: A
authors.lastname: Nahmias
mesh_terms: D000936:Antigen-Antibody Complex / Q000097:blood; D004279:DNA, Viral / Q000097:blood; D004797:Enzyme-Linked Immunosorbent Assay / Q000379:methods*; D005845:Georgia; D015483:HIV Antibodies / Q000097:blood; D016655:HIV Core Protein p24 / Q000097:blood; D015658:HIV Infections / Q000175:diagnosis* / Q000635:transmission; D006764:Hospitals, Community; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D016133:Polymerase Chain Reaction / Q000379:methods*; D011237:Predictive Value of Tests; D011446:Prospective Studies; D012680:Sensitivity and Specificity
chemical_list: D000936:Antigen-Antibody Complex; D004279:DNA, Viral; D015483:HIV Antibodies; D016655:HIV Core Protein p24