Relative abundance of individual WITS in the spleens and livers.

<p>Secondary challenge bacteria segregate into the liver and spleen to form independent populations within 6 h. Subsequently hepatic and splenic populations become homogeneous from 120 h. All WITS within a mouse are represented by the same symbol. Points along the diagonal correspond to equal abundances in both organs. Mice were either controls or depleted of T-cells (T−); they all received the live vaccine and were challenged with 310 CFU of WITS.