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. 2003 Sep;10(5):960–966. doi: 10.1128/CDLI.10.5.960-966.2003

FIG. 4.

FIG. 4.

Effects of challenge strain on nitrite responses. Blood mononuclear cells collected immediately before challenge (day 0) and at 0 days, 34 days, 68 days, or 124 days after being challenged with M. bovis strain 95-1315 (closed triangles, n = 10) or M. bovis strain HC-2045T (open boxes, n = 10) were cultured with 5 μg of PPDb per ml, 5 μg of PPDa per ml, 10 μg of M. bovis strain 95-1315 WCS per ml, or 10 μg of M. bovis strain HC-2045T WCS per ml. Nitrate concentrations in 48-h culture supernatants were quantified by the Griess reaction. The P values for the effects of the strains are indicated on each graph.