Fig. 1

Comparison of distribution of measured values by clinical state 1 Distribution of measured values of a number of lymphocytes, b proviral load in peripheral blood, c TNFR II/I, and d TK. Each marker was compared by clinical status as follows. Non-infected: cattle not infected with bovine leukemia virus (BLV); AL: aleukemic cattle; PL: persistent lymphocytosis cattle; EBL: cattle affected with BLV-induced lymphoma. Measured values were transformed to common logarithms (log10). * indicates significant difference between EBL cattle and non-EBL cattle according to Mann-Whitney test (p < 0.05). Same letters indicate significant differences between BLV infection statuses as determined by the Kruskal-Wallis test and subsequent Bonferroni’s multiple comparisons test (p < 0.05)