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*Survive in phagolysosomes and do not interfere with degranulation or lysosomal fusion
 
*Survive in phagolysosomes and do not interfere with degranulation or lysosomal fusion
 
*Resistant to macrophage killing mechanisms
 
*Resistant to macrophage killing mechanisms
*Antiphagocytic proteins secreted by the organisms interfere with host [[Neutrophils - WikiBlood|neutrophils]]
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*Antiphagocytic proteins secreted by the organisms interfere with host [[Neutrophils|neutrophils]]
 
*[[Yersinia pestis|''Y. pestis'']] is more invasive than the other species and also possesses and antiphagocytic capsule and a plasminogen activator which aids systemic spread; endotoxin also contributes to its pathogenicity
 
*[[Yersinia pestis|''Y. pestis'']] is more invasive than the other species and also possesses and antiphagocytic capsule and a plasminogen activator which aids systemic spread; endotoxin also contributes to its pathogenicity
 
*Transport within macrophages to mesenteric lymph nodes
 
*Transport within macrophages to mesenteric lymph nodes