the virus was readily recovered from the turbinates , respiratory tract epithelium of the pharynx , retropharyngeal lymph nodes , trachea , lungs , and spleen of animals euthanatized on ped 4 , but only from the respiratory tract epithelium of the pharynx in ferrets euthanatized on ped 8 and 12 .
C0040578
trachea
C0035237
respiratory tract