title: Maternal immunologic and virologic risk factors for infant human immunodeficiency virus type 1 infection: findings from the Women and Infants Transmission Study.
abstract: Maternal virus load of human immunodeficiency virus 1 (HIV-1) and maternal immunity are both associated with risk of an infected infant. The interrelationship of these two variables in describing that risk was assessed in a multisite study of 475 mother-infant pairs. Infant infection was associated with low CD4 cell percentage, high CD8, CD8/CD38, and CD8/DR cell percentages, persistently positive HIV-1 cultures, and high HIV-1 titer (P < .001, .001, .005, .006, .001, and .013, respectively). The association of CD4 cell percentage and increased CD8, CD8/CD38, and CD8/DR cell percentages with transmission was restricted to the 42% of women whose HIV-1 cultures were not persistently positive (all P < .001). Women with at least 1 negative culture and high CD4 cell percentage or low CD8 cell percentage were at very low risk (0-4%) of transmitting HIV-1, while those with always positive cultures transmitted at a high rate (18%-27%), regardless of immune status.
authors.affiliation: Department of Pediatrics, Columbia University College of Physicians and Surgeons, New York City, NY 10032, USA.
authors.forename: J
authors.initials: J
authors.lastname: Pitt
authors.forename: D
authors.initials: D
authors.lastname: Brambilla
authors.forename: P
authors.initials: P
authors.lastname: Reichelderfer
authors.forename: A
authors.initials: A
authors.lastname: Landay
authors.forename: K
authors.initials: K
authors.lastname: McIntosh
authors.forename: D
authors.initials: D
authors.lastname: Burns
authors.forename: G V
authors.initials: GV
authors.lastname: Hillyer
authors.forename: H
authors.initials: H
authors.lastname: Mendez
authors.forename: M G
authors.initials: MG
authors.lastname: Fowler
mesh_terms: D000293:Adolescent; D000328:Adult; D019380:Anti-HIV Agents / Q000627:therapeutic use; D018414:CD8-Positive T-Lymphocytes / Q000276:immunology; D005260:Female; D015658:HIV Infections / Q000151:congenital* / Q000276:immunology; D015497:HIV-1 / Q000276:immunology; D006801:Humans; D007111:Immunity, Cellular; D016130:Immunophenotyping; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000382:microbiology*; D018655:Lymphocyte Count; D015999:Multivariate Analysis; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000276:immunology / Q000382:microbiology*; D012307:Risk Factors; D015215:Zidovudine / Q000627:therapeutic use
chemical_list: D019380:Anti-HIV Agents; D015215:Zidovudine