Studies of the Pasteurella multocida, Isolated from the Surgical Materials of the Zoonosis and from the Oral Swabs of the Pets

Abstract

Recently, we have experienced four cases of zoonosis caused one case by digs bite and three cases by cat bite and scratch. Biochemical identification and sensitivity tests were carried out on those pathogens. Pathogenic microorganisms were successfully cultivated on the blood agar but failed to growon the MacConkey's and BTB agar. All of the microorganisms showed following characteristics on agar such as positive oxidase and catalase reaction, positive indole production and glucose fermentation and also showed positive hemolysis on sheep blood agar, negative motility, and sensitive to penicillin, and the microorganism was identified as Pasteurella multocida (P. multocids). All of the antibiotics tested here were strongly effective on those isolates.
Cultures of the oral swabs taken from the dogs and cats revealed positive culture for P. multocida in 21.1%(8 of 38) and 71.4%(15 of 21), respectively.
Because infections caused by the animal bite and/or scratch were susally treated by antibiotics without microbiological examination, latent P. multocida infection as zoonosis are considered to be much more common than we have thought.
We must make more attention on the P. multocida infection, since pet keepers are increasing and severe zoonosis by animal bite and/or scratch is thought to be increase gradually.