<unk> e is spread through respiratory droplet transmission. Once attached to the mucosa of a host organism, M.<unk> e extracts nutrients, grows, and reproduces by binary fission. Attachment sites include the upper and lower respiratory tract, causing pharyngitis, bronchitis, and<unk> . The infection caused by this bacterium is called atypical<unk>  because of its protracted course and lack of sputum production and wealth of extrapulmonary symptoms. Chronic<unk>  infections have been implicated in the pathogenesis of rheumatoid arthritis and other rheumatological diseases.<unk>  atypical<unk>  can be complicated by Stevens–Johnson syndrome, autoimmune hemolytic anemia, cardiovascular diseases, encephalitis, or Guillain–Barré syndrome.
Mycoplasma pneumonia
Mycobacterium tuberculosis
Bordetella pertussis
Pneumocystis jirovecii
Bacillus anthracis
Rhodococcus equi
Legionella
Haemophilus influenzae