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Comparison of total leukocyte counts in digested lung samples from CBA/Ca (■) and BALB/c (▴) mice following infection with S. pneumoniae D39. Data represent the mean of five mice per time point except 168 h, which is from three mice. Error bars show the standard error of the mean. ∗, P < 0.005; ∗∗, P < 0.01 for BALB/c leukocyte levels to compared to CBA/Ca levels.
