Bacterial counts in the spleens and livers of control and C1q-deficient mice. Mice were infected i.v. with 105 CFU of Salmonella serovar Typhimurium 12023/mouse, and viable counts were performed on days 1, 3, 5, and 7 postchallenge. Results are expressed as log10 viable counts per gram of tissue ± standard errors of the means obtained from groups of 5 to 10 mice for each time point. Data are representative of three separate experiments. ∗, P < 0.05.