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Elevated serum antibody titers to Epstein-Barr virus in HTLV-I-associated myelopathy (HAM)
We studied the serum antibody titers to Epstein-Barr virus (EBV) in 11 patients with HTLV-I-associated myelopathy (HAM). HAM patients showed significant increases in IgG antibodies to EBV-capsid antigen (VCA) and -early antigen (EA) and in VCA-specific IgA compared with 25 seronegative subjects. However, there were no significant differences in antibodies to EBV-nuclear antigen (EBNA) or to other viruses between the two groups. In HAM patients, altered antibody responses occurred specifically to EBV-associated antigens, not to other viruses.
We studied the serum antibody titers to Epstein-Barr virus (EBV) in 11 patients with HTLV-I-associated myelopathy (HAM). HAM patients showed significant increases in IgG antibodies to EBV-capsid antigen (VCA) and -early antigen (EA) and in VCA-specific IgA compared with 25 seronegative subjects. However, there were no significant differences in antibodies to EBV-nuclear antigen (EBNA) or to other viruses between the two groups. In HAM patients, altered antibody responses occurred specifically to EBV-associated antigens, not to other viruses.