| chlamydia psittaci exposure in pet birds. | chlamydia psittaci is a zoonotic pathogen with a wide range of avian hosts and may be transmitted to humans and cause severe disease. to assess the risk of psittacosis posed by pet birds, the seroprevalence of chlamydia psittaci antibodies in 360 eurasian siskins (carduelis spinus), 289 oriental skylarks (alauda arvensis) and 36 black-tailed grosbeaks (coccothraustes migratorius) in gansu province, north-western china was detected by an indirect haemagglutination assay. twenty-seven out of 289 ( ... | 2014 | 24445511 |