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M9490669.TXT
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1994-09-24
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Document 0669
DOCN M9490669
TI Follow-up investigation of indeterminate western blot results for
antibody to human immunodeficiency virus type 1.
DT 9411
AU Lee JH; Department of Clinical Pathology, Tri-Service General Hospital,;
Taipei, Taiwan R.O.C.
SO J Formos Med Assoc. 1994 Apr;93(4):283-8. Unique Identifier : AIDSLINE
MED/94339747
AB A total of 1,066 serum samples from 911 individuals with repeatedly
reactive enzyme-linked immunosorbent assay (ELISA) for antibody to the
human immunodeficiency virus type 1 (HIV-1) were enrolled for
confirmatory HIV-1 infection diagnosis during the three years from 1990
to 1993. According to the interpretation criteria for the anti-HIV
Western blot test recommended by the Centers for Disease Control, 38
(4.2%) were Western blot-positive, 110 (12.1%) were Western
blot-negative, and 763 (83.7%) were Western blot-indeterminate. The most
common band patterns of indeterminate Western blot results were
antibodies to gag gene product only (667/763, 87.5%) which included p18
only (180, 23.6%), p18 plus others (521, 68.3%), p25 only (55, 7.2%),
and p25 plus others (212, 27.8%). Eighty-three individuals with
indeterminate Western blot results were followed-up and new serum
samples were collected. None of the follow-up samples became positive.
When band patterns changed, they usually did so within the specific
category (either gag, pol, or env), such as a change from p18 to its
precursor p55. All of the indeterminate specimens tested by particle
agglutination assay showed negative reaction. In conclusion, an
indeterminate result should not been seen as final; laboratory testing
is required on the follow-up specimens.
DE Agglutination Tests AIDS Serodiagnosis *Blotting, Western
Enzyme-Linked Immunosorbent Assay Human HIV Antibodies/*ANALYSIS
HIV-1/*IMMUNOLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).