<unk>  is a yeast-like fungus of the genus<unk> . The causative organism of<unk>  pneumonia, it is an important human pathogen, particularly among immunocompromised hosts. Prior to its discovery as a human-specific pathogen,<unk> i was known as P. carinii.
Pneumocystis jirovecii
Mycobacterium tuberculosis
Cryptococcus neoformans
Mycoplasma pneumonia
Mycoplasma
Bacillus anthracis
Mycobacterium avium intracellulare
Chlamydophila pneumoniae