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Durable control of human immunodeficiency virus (HIV) replication and lack of disease progression in the absence of antiretroviral therapy were studied in a military cohort of 4586 subjects. We examined groups of elite controllers (ie, subjects with plasma HIV RNA levels of <50 copies/mL; prevalence, 0.55% [95% confidence interval {CI}, 0.35%-0.80%]),(More)
STUDY OBJECTIVE To determine the frequency of pathogenic gastrointestinal microorganisms in patients with the acquired immunodeficiency syndrome (AIDS) and diarrhea, and to determine if treatment for identifiable microorganisms improves symptoms. DESIGN Prospective, consecutive sample study. SETTING Referral-based clinic and wards, National Institutes(More)
Between January 1985 and May 1986, following completion of a pilot study, a main study concerning the possible association between Reye's syndrome and salicylates was conducted. Twenty-seven patients with stage II or deeper Reye's syndrome whose diagnoses were confirmed by an expert panel and who had appropriate antecedent illnesses (chickenpox, respiratory(More)
Kaposi's sarcoma (KS) is a relatively low grade neoplasm, classically occurring in the skin of elderly men. A more virulent and invasive form of Kaposi's sarcoma has been described in patients with acquired immune deficiency syndrome (AIDS). The origin and identification of the tumor cells in these lesions is controversial. Here we have studied the behavior(More)
CXCR4 is a chemokine receptor and a coreceptor for T-cell-line-tropic (X4) and dual-tropic (R5X4) human immunodeficiency virus type 1 (HIV-1) isolates. Cells coexpressing CXCR4 and CD4 will fuse with appropriate HIV-1 envelope glycoprotein (Env)-expressing cells. The delineation of the critical regions involved in the interactions within the(More)
The human serum human immunodeficiency virus type 1 (HIV-1)-neutralizing serum 2 (HNS2) neutralizes many primary isolates of different clades of HIV-1, and virus expressing envelope from the same donor, clone R2, is neutralized cross-reactively by HIV-immune human sera. The basis for this cross-reactivity was investigated. It was found that a rare mutation(More)
Neutralizing antibodies (NA) against HIV-1MN and HIV-1IIIB, and antibodies binding to synthetic peptides (BA) derived from the gp120 envelope V3 region principal neutralizing determinants (PND) of the HIV-1MN, HIV-1IIIB, and HIV-1Z3 virus strains were assayed in HIV-1 antibody-positive sera from the United States, Haiti, Brazil, Zaire, and Zimbabwe. The(More)
We studied 58 recipients of bone-marrow transplants to evaluate immune responses to cytomegalovirus infection. Such infection developed in 43 patients; it was fatal in 12, nonfatal in 23, and present at death from other causes in eight. All patients had low or absent cytomegalovirus-specific cytotoxic lymphocyte activity before the onset of infection.(More)
Herpesvirus infections were studied in persons with or at risk for the acquired immune deficiency syndrome (AIDS). The infections diagnosed were as follows: patients with AIDS, cytomegalovirus (CMV) in 34 of 34, Epstein-Barr virus (EBV) in 33 of 34, herpes simplex viruses (HSV) in eight of 34, and varicella zoster virus in four of 34; patients with chronic(More)
Thirty renal transplant recipients were studied prospectively to evaluate the relationship of cytomegalovirus-specific cytotoxic lymphocyte responses to clinical outcome during cytomegalovirus infection. Cytomegalovirus infection developed in 20 patients; of these 20, 14 had cytomegalovirus-specific cytotoxic lymphocyte responses whereas six did not.(More)