Streptococcal More Condition_symptoms Where Is Streptococcal Pneumoniae Organism Specifically Found In The Body?

Where is streptococcal pneumoniae organism specifically found in the body? - streptococcal more condition_symptoms

and how they cause disease? As he should be and how to get it?
Where Neisseria meningitidis is the body? If he is not to be?