A Pasteurella or Pasteurella-Like Organism as the Cause of an Infectious Sinusitis of Turkeys

Infectious sinusitis has been described by Hinshaw (1943) so well that a further description of the disease would not seem to be warranted. Neither is it desired to give the impression that all cases of infectious sinusitis arise as the result of the organism herein described. Hinshaw cites the results of his own work and that of others concerning the transmissibility of the disease and the failure to determine anything definite regarding the nature of the causative agent, but calls attention to a pleomorphic Gram-negative organism consistently isolated from sinusitis exudate. Recently studies to determine something of the nature of the causative agent of infectious sinusitis of turkeys were undertaken at this station. EXPERIMENTAL The exudate from field cases of sinusitis in turkeys was shown to be capable of producing a characteristic infection in chickens when such exudate was swabbed into their nasal cavities. The infection in chickens was characterized . . .