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Absence of HTLV-I infection among seronegative subjects in an endemic area of Japan

✍ Scribed by Tomohiro Kinoshita; Jun Imamura; Hirokazu Nagai; Kunitada Shimotohno; Mizuko Ito; Shin-Ichiro Ito; Shuichi Ikeda; Masazumi Nagatomo; Kazuo Tajima

Publisher
John Wiley and Sons
Year
1993
Tongue
French
Weight
605 KB
Volume
54
Category
Article
ISSN
0020-7136

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✦ Synopsis

To examine the prevalence of infection by human T-cell leukemia virus type I (HTLV-I) among seronegative subjects, healthy subjects on Tsushima Island, Japan, where the infection is endemic, were evaluated. A total of 209 healthy adults were examined for HTLV-I provirus in peripheral blood mononuclear cells by the polymerase chain reaction (PCR), as well as for anti-HTLV-l antibodies by the particle agglutination (PA) method, the enzyme-linked immunosorbent assay (ELISA) and by immunofluorescence analysis (IF). A total of 76 subjects were positive and I33 were negative for the provirus, showing a close correlation with the results of 3 assays for anti-HTLV-l serum antibodies. None of the seronegative subjects reacted positively on PCR analysis. These observations indicate that seronegative HTLV-I carriers are rare in an area of Japan in which this viral infection is endemic.

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