Bacteria of the genus Chlamydia belong to order Chlamydiales, within family Chlamydiaceae. These intracellular parasites have a different biphasic reproductive cycle than other bacteria. The important Chlamydiaceae are trachomatis, Chlamydophila pneumoniae and psittaci. trachomatis Clamydophila primary human pathogens. is transmitted by sexual contact. It causative agent LGV (lymphogranuloma ve...

The in vitro and in vivo antichlamydial activities of HSR-903 were investigated. The MICs of HSR-903 for different species of chlamydia were 0.016 to 0.063 microg/ml, which were superior to those of conventional fluoroquinolones. The therapeutic effect of HSR-903 in experimental mouse Chlamydia psittaci pneumonia was also excellent and almost equal to that of minocycline and superior to that of...

Experimental ocular infection of specific-pathogen-free cats with the feline pneumonitis strain of Chlamydia psittaci produced an acute, severe conjunctivitis characterized by blepharospasm, conjunctival hyperemia, chemosis, and ocular discharge. Organisms were recovered from the conjunctiva for several weeks, and persistent genital and gastrointestinal infection also resulted from the ocular i...

While attempting to identify genes and their corresponding antigens that could be used to improve the current methods of diagnosing Chlamydia psittaci infection which causes enzootic abortion in ewes, two candidate clones were isolated from a lambda gt 11 genomic DNA expression library of ovine abortion subtype (strain S26/3) C. psittaci. These clones contained fragments of a gene coding for a ...

Western-blot analysis was used to study the reaction of koala antisera, two specific polyclonal antibodies and one monoclonal antibody, with chlamydial antigens in koalas infected with Chlamydia psittaci. The koala sera recognized four C. psittaci surface antigens, corresponding to the major outer membrane protein (39.5 kDa), 31 kDa protein, 18 kDa protein and lipopolysaccharide. The S25-23 LPS...

Cause Chlamydiosis refers to an infection with organisms of the genus Chlamydia sp., which are bacteria that live within animal cells. Chlamydia psittaci is the species generally associated with this disease in birds. The severity of the disease differs by the strain of C. psittaci and the susceptibility of different species of birds. As a result, chlamydiosis may range from an inapparent infec...