These they are…
- OBLIGATORY OR MAINLY INTRACELLULAR:
- respiratory infections (pneumopathies):
Chlamydia pneumoniae: 10% in children
Legionella pneumophila: frequent if immunosuppression
Mycobacterium spp.: frequent if immunosuppression
- sexually transmitted diseases
Chlamydia trachomatis: most common pathogen
- CNS infections + other sites:
Listeria monocytogenes: pregnant women; immunosuppression
- FACULTATIVE OR MAINLY EXTRACELLULAR:
- digestive tract infections
Salmonella spp., Shigella spp.
- respiratory, cutaneous, etc…tract infections
Streptococcus spp., Staphylococcus spp.
You cannot be narrow in your targetting...