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BALB/cJ mice, unlike other BALB/c substrains, are uniquely resistant to Y. pestis. (A and B) Groups of 10 C57BL/6J, BALB/cJ, BALB/cByJ, and BALB/cAnNHsd mice were infected with 55 (A) or 1,000 (B) CFU of Y. pestis KIM5 and monitored for survival for 15 days. (C) Groups of 10 C57BL/6J, BALB/cJ, and CB6F1/J mice were infected with 13,000 CFU of Y. pestis and monitored for survival for 15 days.
