Reduced CD4(+)-T-helper-lymphocyte- and increased CD8(+)-T-suppressor-lymphocyte-subsets were found in peripheral blood of 47 FIV-seropositive cats with naturally acquired FIV-infection. The CD4+/CD8+ ratio was decreased, too. Variance analysis of data included the variables reaction in FIV-test, age group, and race. Similarities with HIV-infection were discussed.
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