live mycoplasma pulmonis organisms were used to examine the immune response in the bronchus-associated lymphoid tissue after primary and secondary challenge with m. pulmonis , to study the dissemination of the primed state to distal tissues ( i.e. , spleen , peripheral blood , and peyer 's patches ) , and to determine whether the chronic antigenic stimulation accompanying infection influences the isotype potential and commitment of the primed b cells recovered from the various tissues .
C0301872
immune response
C0003320
antigenic