Causes walking pneumonia, which behaves like a viral pneumonia, also an atypical pneumonia.

Causes atypical pneumonia which is associated with IgM mediated hemolytic anemia.

Causes tracheobronchitis and pharyngitis and is associated with Guillain-Barre Syndrome.

Small, obligate intracellular bacteria that has elementary and reticulate bodies.

Also known as energy parasites.

Causes Lymphogranuloma venereum.

It is a leading cause of preventable blindness worldwide, common in Africa which is not sexually transmitted. It starts as follicular conjunctivitis with diffuse inflammation of the conjunctiva.

It prevents neonatal conjunctivitis caused by Neisseria and Chlamydia.

It causes murine typhus and Q fever, transmitted by a tick.