CAMP and infection: To determine if this phenotype correlated with an acute deficiency of cathelicidin during infection, rather than a sustained effect of cathelicidin knockout (KO) on bladder and/or immune development and maturation, WT and Camp−/− mice were instilled with a single intravesicular dose of recombinant CRAMP (rCRAMP; 320 μM) 1 h prior to GBS infection.