InstituteofLaboratoryAnimalScience;
CAMS&PUMC;
Beijing100021;
SchoolofVeterinmTMedicine;
Rskuno-GskuenUniversity;
Bunkyodai;
Ebetsu069;
Japan;
CentralInstituteforExperimentalAnimals;
Miyamae-kuKawasaki-shi216;
Japan;
慢性呼吸道感染; CAR杆状菌; SSU-rRNA; 基因序列; 细菌鉴定; 黄杆菌; 屈挠杆菌;