in the absence of sufficient bacterial
hosts [34]. Finally, we found no significant differences between
any of the treatment or control groups in the density of bacteria
recovered from spleens of infected mice (data not shown). Although
it is possible that systemic phage may have greater access
to such extrapulmonary sites than do intranasal phage, this
finding suggests that bacterial reinfection of lung from infected
spleen does not account for the differences in lung bacterial
density observed between groups.