The woman breathes in pneumonia (the pathogen) through her mouth. it then enters the respiratory system.
the body tries to cough up the pneumonia. but this boy was persistant.
Location: THe Throat
pneumonia enters the circulatory system and a white blood cell notices and fights it. But this boy was still persistant.
The helper t cells notice the bacteria and send for help from other lymphocytes.
The cytotoxic t cell looks for the pneumonia and once it finds it, the cytotoxic t cell kills the pathogen.
the memory b cells remember the antigen of the bacteria (pneumonia) and when the body is invaded by pneumonia again, the memory b cell remembers it and initiates a quicker and stronger attack against it.