Figure 3. Bacillary load and extent of immune response in Wistar rats infected with different inocula of Mtb W4 strain.
A, Number of Mtb colony-forming units in the lung of rats infected with different inocula of W4. Data from two different experiments are shown. Values are means ± SD. B, In vitro spleen and blood cell proliferation. Proliferation in response to ESAT6+CFP10 peptides was measured by [3H]thymidine incorporation. Each bar represents one animal.