Microbiology 1313.2 - Lesson 6

Mycoplasma pneumoniae

can cause bronchitis, pharyngitis, or a common respiratory infection known as primary atypical pneumonia

Coxiella burnetii

causes Q fever; resistant enough to survive airborne transmission, although most Rickettsia are not

Rickettsia rickettsii

causes Rocky Mountain spotted fever

Chlamydia pneumoniae

causes chlamydial pneumonia; important respiratory pathogen, known to cause pneumonia, acute respiratory disease, and pharyngitis

Rickettsia prowazekii

causes epidemic typhus (louse born typhus)

Chlamydia trachomatis

causes inflammation of the urinary tract and a sexually transmitted disease known as lymphogranuloma venereum; most commonly spread sexually transmitted bacterial pathogen in the United States

Chlamydia psittaci

causes parrot fever which is also known as psittacosis or asornithosis

chlamydia

have a unique growth cycle because they are incapable of producing enough energy by themselves, hence they are obligate intracellular parasites

rickettsia

short, nonmotile, gram-negative bacilli that are obligately intracellular pathogens; transmitted to human hosts by arthropod vectors, where they infect the endothelial cells of the human vascular system and result in local blockages of small blood vessels

mycoplasma

the smallest free-living organisms in nature; resistant to penicillin and similar antibiotics