BACTERIOPHAGE STUDIES ON THE HEMORRHAGIC SEPTICEMIA PASTEURELLAE

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Abstract
On the basis of cultural characteristics, biochemical reactions and bacteriophage sensitivity, the hemorrhagic septicemia pasteurellae may be divided into 2 rather broad species categories, P. multocida and P. haemolytica, according to indole formation and growth on MacConkey agar. A no. of P. multocida bacteriophages studied were shown to require Ca or Mg ions as a cofactor for lysis in broth. Of 118 P. multocida strains, 84% were found to be sensitive to 1 or more of 16 bacteriophages.