Relative prevalence and risk factors of HTLV-I and HTLV-II infection in US blood donors
Identifieur interne : 001496 ( Main/Exploration ); précédent : 001495; suivant : 001497Relative prevalence and risk factors of HTLV-I and HTLV-II infection in US blood donors
Auteurs : H. H. Lee [États-Unis] ; P. Swanson [États-Unis] ; J. D. Rosenblatt [États-Unis] ; I. S. Y. Chen [États-Unis] ; W. C. Sherwood [Afrique du Sud] ; D. E. Smith [États-Unis] ; G. E. Tegtmeier [Royaume-Uni] ; L. P. Fernando [Royaume-Uni] ; C. T. Fang [États-Unis] ; M. Osame [Japon] ; S. H. Kleinman [États-Unis]Source :
- The Lancet [ 0140-6736 ] ; 1991.
English descriptors
- KwdEn :
- Abbott laboratories, Assay, Blood bank, Blood donors, Centre, Chronic leukaemia, Confidence interval, Donor, Donor base, Donor interviews, Endemic regions, Hairy cell leukemia, Healthy controls, High frequency, High rate, Hispanic, Human leukemia virus, Human lymphotropic virus type, Human virus, Infection, Infection rates, Intravenous, Intravenous drug, Intravenous drug abusers, Ivdu, Ivdus, Kansas city, Leukaemia, Leukemia, Neurological disorder, Northern california, Nucleotide, Prevalence, Primer, Primer pair, Primer pairs, Proc natl acad, Risk factors, Routine donor screening, Seropositive, Seropositive donors, Seropositive individuals, Seroprevalence, Seroprevalence rate, Seroprevalence rates, Sexual contacts, Sexual partners, Statistical analysis, University hospital leiden, Volunteer donors, Western blot.
- Teeft :
- Abbott laboratories, Assay, Blood bank, Blood donors, Centre, Chronic leukaemia, Confidence interval, Donor, Donor base, Donor interviews, Endemic regions, Hairy cell leukemia, Healthy controls, High frequency, High rate, Hispanic, Human leukemia virus, Human lymphotropic virus type, Human virus, Infection, Infection rates, Intravenous, Intravenous drug, Intravenous drug abusers, Ivdu, Ivdus, Kansas city, Leukaemia, Leukemia, Neurological disorder, Northern california, Nucleotide, Prevalence, Primer, Primer pair, Primer pairs, Proc natl acad, Risk factors, Routine donor screening, Seropositive, Seropositive donors, Seropositive individuals, Seroprevalence, Seroprevalence rate, Seroprevalence rates, Sexual contacts, Sexual partners, Statistical analysis, University hospital leiden, Volunteer donors, Western blot.
Abstract
The clinical significance of human T-cell lymphotropic virus type II (HTLV-II) infection, unlike that of HTLV-I, is unknown, and the major known association of HTLV-II seropositivity is with intravenous drug abuse. Screening of blood donors for HTLV-I, now routine in North America, does not distinguish this retrovirus from HTLV-II. To find out more about the seroepidemiology of and risk factors for HTLV I and II, blood from 480 000 volunteer donors in five geographically separate US urban centres was tested for antibodies to HTLV-I/II and HIV-1. Confirmed HTLV-I/II seropositive donors were then followed up by DNA amplification to distinguish type I from type II and by interviews focusing on possible risk factors. HTLV seroprevalence was 3·3 times greater than that for HIV-1 (0·043% vs 0·013%). DNA amplification on 65 of the 207 HTLV-I/II seropositive donors revealed that 34 (52%) had HTLV-II infection and 28 (43% had HTLV-I; 3 samples were uninformative. Interviews of 49 donors showed that whereas HTLV-I was principally associated with donor origin from endemic regions, the major risk factor for HTLV-II infection was intravenous drug use. The surprisingly high rate of HTLV-II infection in US blood donors raises important public health and donor counselling issues since HTLV-I infection is associated with adult T-cell leukaemia and a neurological disorder while the pathogenicity of HTLV-II is as yet unclear.
Url:
DOI: 10.1016/0140-6736(91)93126-T
Affiliations:
- Afrique du Sud, Japon, Royaume-Uni, États-Unis
- Californie, Maryland, Pennsylvanie
- Los Angeles, Philadelphie
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Le document en format XML
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<front><div type="abstract" xml:lang="en">The clinical significance of human T-cell lymphotropic virus type II (HTLV-II) infection, unlike that of HTLV-I, is unknown, and the major known association of HTLV-II seropositivity is with intravenous drug abuse. Screening of blood donors for HTLV-I, now routine in North America, does not distinguish this retrovirus from HTLV-II. To find out more about the seroepidemiology of and risk factors for HTLV I and II, blood from 480 000 volunteer donors in five geographically separate US urban centres was tested for antibodies to HTLV-I/II and HIV-1. Confirmed HTLV-I/II seropositive donors were then followed up by DNA amplification to distinguish type I from type II and by interviews focusing on possible risk factors. HTLV seroprevalence was 3·3 times greater than that for HIV-1 (0·043% vs 0·013%). DNA amplification on 65 of the 207 HTLV-I/II seropositive donors revealed that 34 (52%) had HTLV-II infection and 28 (43% had HTLV-I; 3 samples were uninformative. Interviews of 49 donors showed that whereas HTLV-I was principally associated with donor origin from endemic regions, the major risk factor for HTLV-II infection was intravenous drug use. The surprisingly high rate of HTLV-II infection in US blood donors raises important public health and donor counselling issues since HTLV-I infection is associated with adult T-cell leukaemia and a neurological disorder while the pathogenicity of HTLV-II is as yet unclear.</div>
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