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© 1993 Oxford University Press

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HTLV-I/II Infections in Spain

V SORIANO*, E CALDERóN**, B ESPARZA{dagger}, G CILLA{ddagger}, A AGUILERA§, M GUTIÉRRZ*, J TOR||, E PUJOL, F MERINO{dagger}, E PÉREZ-TRALLERO{ddagger}, M LEAL**, J GONZALEZ-LAHOZ* and from the HTLV-I/II Spanish Study Group

* Service for Infectious Disease, Centro de Investigaciona Clinicas, Instituto de Salud Carlos III Madrid, Spain
** Hospital Virgen del Rocio Sevilla, Spain
{dagger} Universidad del Pais Vasco Bilbao, Spain
{ddagger} Hospital Virgen de Aránrazu San Sebastián, Spain
§ Hospital Xeral de Galicia Santiago, Spain
|| Hospital Germans Trias i Pujol Badalona, Spain
Hospital General, Huelva Spain

Antibodies to HTLV-I/II were inmtigated in sera from 7521 individuals living in Spain. They were clasified in four major groups: a) subjects at high risk of retroviral infections e.g. parentml drug addicts, homosexuals, prostitutes, and multiple-transfused individuals; b) patients suffering illness associated with HTLV-I in endemic regions; c) immigrants from endemic areas; and d) blood donors. Sera were collected from 1984 to December 1991. Repeatedly reactive ELISA was found in 211 samples (2.8%), but Western blot only confirmed the presence of HTLV-I/II antibodies in 23 samples (0.30%), corresponding to eight (0.25%) out of 3207 drug abusers, six (0.72%) out of 834 immigrants (five Africans and one Swth American), three (0.41%) out of 727 patients with HTLV-related diseases (one woman with HTLV-I associated myelopathy had received blood transfusions in an endemic area), four (0.54%) wt of 793 prostitutes, one multiple-transfused native woman, and one (0.16%) out of 603 native saamen. The Westem blot antipattern confirmed HTLV-II infection instead of HTLV-I in nine (39%) subjects. The remaining 14 (61%) HTLV-reactive samples were interpreted as HTLV-I seropositive, most of which were from immigrants. None of 857 blood donors analysed was reactive for HTLV antibody. These results suggest that b t h HTLV-I and HTLV-II are present in Spain, although at a low rate and mostly restricted to individuals coming from endemic areas, drug addicts, and prostitutes. Furthermore, diseases related to HTLV-I (particularly lymphoproliferative disorders, and subacute myelopthied seem to be rarely associated with these viruses in Spain, a non-endemic area.

Revised 1 November 1992


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