title: Psittacine birds and chlamydia.
mesh_terms: D002689:Chlamydia / Q000145:classification*; D002690:Chlamydia Infections / Q000382:microbiology* / Q000635:transmission; D002691:Chlamydophila psittaci / Q000302:isolation & purification; D006801:Humans; D012698:Serologic Tests