title: TWAR: a new chlamydial species?
abstract: In 1986 Grayston and coworkers termed TWAR (or Taiwan Acute Respiratory) a new strain of Chlamydia which has still not received an exact taxonomic classification. In fact, whereas initially the TWAR strain was classified as C. psittaci because of its oval-shaped, glycogen free, dense inclusions, recent studies on the immunological analysis, DNA analysis and ultrastructural morphology, would seem to indicate that TWAR is a new Chlamydial species, whose proposed name as C. pneumonia. TWAR is mainly responsible for respiratory syndrome varying in gravity from a slight form to pneumonia, and is liable to give rise to epidemic forms; in addition, more recently, certain Authors have postulated its involvement in the pathogenesis of ischemic cardiopathy.
authors: IV Cattedra di Microbiologia, Facoltà di Medicina e Chirurgia, Università La Sapienza, Roma.
authors: R
authors: R
authors: Nicosia
authors: R
authors: R
authors: Pustorino
authors: R
authors: R
authors: Sessa
authors: I
authors: I
authors: Santino
authors: G
authors: G
authors: Simonetti
authors: M
authors: M
authors: Del Piano
mesh_terms: D002689:Chlamydia / Q000145:classification*; D002690:Chlamydia Infections / Q000175:diagnosis / Q000188:drug therapy / Q000453:epidemiology / Q000382:microbiology; D004196:Disease Outbreaks; D006801:Humans; D012141:Respiratory Tract Infections / Q000175:diagnosis / Q000188:drug therapy / Q000453:epidemiology / Q000382:microbiology; D012537:Scandinavian and Nordic Countries / Q000453:epidemiology; D013624:Taiwan