FIG. 2.

Survival following Salmonella infection. (A) C57BL/6 and CCL2^−/− mice were infected intragastrically with increasing doses of salmonellae, and the percent survival was determined 5 days after infection. If the mice became moribund, they were euthanized and considered to have succumbed to infection. Shown are survival percentages for infecting doses of 10⁸ (B) and 10⁴ (C) bacteria as a function of time postinfection. An asterisk denotes P < 0.05 when comparing the percent survival of CCL2^−/− mice to that of C57BL/6 mice for each day.