title: Letter: Psittacosis.
mesh_terms: D000818:Animals; D001715:Bird Diseases / Q000517:prevention & control*; D003441:Crowding; D007886:Legislation, Veterinary; D011563:Psittaciformes; D009956:Psittacosis / Q000517:prevention & control / Q000662:veterinary*; D011790:Quarantine; D013242:Sterilization; D013752:Tetracycline / Q000627:therapeutic use*
chemical_list: D013752:Tetracycline