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HTLV infection among Italian intravenous drug users and North African subjects detected by the polymerase chain reaction and serological methods.

Abstract
Six hundred intravenous drug users (IVDUs) and two hundred North Africans were screened for human T-cell leukemia virus (HTLV) antibodies using several serological methods. Eighteen of the eighty-two HTLV-seropositive individuals were also tested by the polymerase chain reaction-DNA enzyme immunoassay (PCR-DEIA), a non-isotopic method of immunoenzymatic detection of the amplified DNA. Of these eighteen subjects, eight IVDUs were found to be HTLV-II-positive by the PCR-DEIA, whereas all of the eighteen subjects were negative for HTLV-I. Western blot (WB) confirmed six of the eight HTLV-positive subjects, while the results of the remaining two were indeterminate. The results confirmed the PCR-DEIA as a rapid and an efficient method of discriminating between HTLV-I and HTLV-II infection, whereas serological tests, including the WB, have limitations in terms of specificity and sensitivity. Moreover, this study showed a higher frequency of HTLV seroreactivity in the Italian IVDU population than in previous studies and confirmed that HTLV-II is more frequent than HTLV-I in this population.
AuthorsE Colombo, C Magistrelli, E Mendozzi, E Cattaneo, G Achilli, P Ferrante
JournalJournal of medical virology (J Med Virol) Vol. 47 Issue 1 Pg. 10-5 (Sep 1995) ISSN: 0146-6615 [Print] United States
PMID8551251 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • DNA, Viral
  • HTLV-I Antibodies
  • HTLV-II Antibodies
Topics
  • Africa, Northern
  • Base Sequence
  • DNA, Viral (analysis)
  • HTLV-I Antibodies (blood)
  • HTLV-I Infections (complications, diagnosis, immunology)
  • HTLV-II Antibodies (blood)
  • HTLV-II Infections (complications, diagnosis, immunology)
  • Human T-lymphotropic virus 1 (genetics, immunology)
  • Human T-lymphotropic virus 2 (genetics, immunology)
  • Humans
  • Italy
  • Molecular Sequence Data
  • Polymerase Chain Reaction
  • Sensitivity and Specificity
  • Serologic Tests
  • Substance Abuse, Intravenous (complications)

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