Chlamydia psittaci, the agent of psittacosis (also known as parrot fever and ornithosis ), is primarily an animal pathogen and rarely causes human disease. In birds, C. psittaci infection is known as avian chlamydiosis . Etiology C. psittaci affects both…
Chlamydia trachomatis is subdivided into 2 biovars: lymphogranuloma venereum (LGV) and trachoma, which is the agent of human oculogenital diseases other than LGV. Although the strains of both biovars have almost complete DNA homology, they differ in growth characteristics and…
Chlamydia pneumoniae is a common cause of lower respiratory tract diseases, including pneumonia in children and bronchitis and pneumonia in adults. Etiology Chlamydiae are obligate intracellular pathogens that have established a unique niche in host cells. Chlamydiae cause a variety…
Chlamydiae are obligate intracellular bacterial pathogens whose entry into mucosal epithelial cells is necessary for intracellular survival and subsequent growth. Chlamydiae cause a variety of diseases in animal species at virtually all phylogenic levels, from amphibians and reptiles to birds…